diff --git a/README.md b/README.md
index 6a13e8faf..5276bf7af 100644
--- a/README.md
+++ b/README.md
@@ -116,7 +116,7 @@ FROM rustembedded/cross:aarch64-unknown-linux-gnu-0.1.16
 
 RUN dpkg --add-architecture arm64 && \
     apt-get update && \
-    apt-get install libfoo:arm64
+    apt-get install --assume-yes libfoo:arm64
 ```
 
 ```
diff --git a/docker/Dockerfile.aarch64-unknown-linux-gnu b/docker/Dockerfile.aarch64-unknown-linux-gnu
index 7d031c440..27c1f170d 100644
--- a/docker/Dockerfile.aarch64-unknown-linux-gnu
+++ b/docker/Dockerfile.aarch64-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-aarch64-linux-gnu \
     libc6-dev-arm64-cross
 
diff --git a/docker/Dockerfile.arm-unknown-linux-gnueabi b/docker/Dockerfile.arm-unknown-linux-gnueabi
index f6d8fef9e..c57bf6fc1 100644
--- a/docker/Dockerfile.arm-unknown-linux-gnueabi
+++ b/docker/Dockerfile.arm-unknown-linux-gnueabi
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-arm-linux-gnueabi \
     libc6-dev-armel-cross && \
     /qemu.sh arm
diff --git a/docker/Dockerfile.arm-unknown-linux-gnueabihf b/docker/Dockerfile.arm-unknown-linux-gnueabihf
index 12a1ecb4d..4d96f69dc 100644
--- a/docker/Dockerfile.arm-unknown-linux-gnueabihf
+++ b/docker/Dockerfile.arm-unknown-linux-gnueabihf
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 RUN mkdir /usr/arm-linux-gnueabihf && \
-    apt-get install -y --no-install-recommends curl xz-utils && \
+    apt-get install --assume-yes --no-install-recommends curl xz-utils && \
     cd /usr/arm-linux-gnueabihf && \
     curl -L https://developer.arm.com/-/media/Files/downloads/gnu-a/8.3-2019.03/binrel/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf.tar.xz | \
     tar --strip-components 1 -xJ && \
diff --git a/docker/Dockerfile.armv5te-unknown-linux-gnueabi b/docker/Dockerfile.armv5te-unknown-linux-gnueabi
index 59285ecf2..db629e17e 100644
--- a/docker/Dockerfile.armv5te-unknown-linux-gnueabi
+++ b/docker/Dockerfile.armv5te-unknown-linux-gnueabi
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-arm-linux-gnueabi \
     crossbuild-essential-armel \
     libc6-dev-armel-cross && \
diff --git a/docker/Dockerfile.armv7-unknown-linux-gnueabihf b/docker/Dockerfile.armv7-unknown-linux-gnueabihf
index deb56affb..e641a552d 100644
--- a/docker/Dockerfile.armv7-unknown-linux-gnueabihf
+++ b/docker/Dockerfile.armv7-unknown-linux-gnueabihf
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-arm-linux-gnueabihf \
     libc6-dev-armhf-cross
 
diff --git a/docker/Dockerfile.asmjs-unknown-emscripten b/docker/Dockerfile.asmjs-unknown-emscripten
index 79cf71a4a..7a93aa3b7 100644
--- a/docker/Dockerfile.asmjs-unknown-emscripten
+++ b/docker/Dockerfile.asmjs-unknown-emscripten
@@ -23,7 +23,7 @@ ENV PATH="${EMSDK}:${EMSDK}/emscripten/sdk:${EMSDK}/llvm/clang/bin:${EMSDK}/node
 
 ENTRYPOINT ["/emsdk_portable/entrypoint"]
 
-RUN apt-get update && apt-get install -y --no-install-recommends \
+RUN apt-get update && apt-get install --assume-yes --no-install-recommends \
   libxml2 \
   python
 
diff --git a/docker/Dockerfile.i586-unknown-linux-gnu b/docker/Dockerfile.i586-unknown-linux-gnu
index 67db7de36..6a00d83e2 100644
--- a/docker/Dockerfile.i586-unknown-linux-gnu
+++ b/docker/Dockerfile.i586-unknown-linux-gnu
@@ -9,5 +9,5 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-multilib
diff --git a/docker/Dockerfile.i686-unknown-linux-gnu b/docker/Dockerfile.i686-unknown-linux-gnu
index 7ee1bd874..f76911341 100644
--- a/docker/Dockerfile.i686-unknown-linux-gnu
+++ b/docker/Dockerfile.i686-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-multilib
 
 COPY qemu.sh /
diff --git a/docker/Dockerfile.mips-unknown-linux-gnu b/docker/Dockerfile.mips-unknown-linux-gnu
index b8e030e95..04ae0b024 100644
--- a/docker/Dockerfile.mips-unknown-linux-gnu
+++ b/docker/Dockerfile.mips-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-mips-linux-gnu \
     libc6-dev-mips-cross
 
diff --git a/docker/Dockerfile.mips64-unknown-linux-gnuabi64 b/docker/Dockerfile.mips64-unknown-linux-gnuabi64
index d329ebb35..d595b4e6b 100644
--- a/docker/Dockerfile.mips64-unknown-linux-gnuabi64
+++ b/docker/Dockerfile.mips64-unknown-linux-gnuabi64
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-mips64-linux-gnuabi64 \
     libc6-dev-mips64-cross && \
     /qemu.sh mips64
diff --git a/docker/Dockerfile.mips64el-unknown-linux-gnuabi64 b/docker/Dockerfile.mips64el-unknown-linux-gnuabi64
index 0cc4a36c6..f6e60e67d 100644
--- a/docker/Dockerfile.mips64el-unknown-linux-gnuabi64
+++ b/docker/Dockerfile.mips64el-unknown-linux-gnuabi64
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-mips64el-linux-gnuabi64 \
     libc6-dev-mips64el-cross
 
diff --git a/docker/Dockerfile.mipsel-unknown-linux-gnu b/docker/Dockerfile.mipsel-unknown-linux-gnu
index 98882ee96..e3efef738 100644
--- a/docker/Dockerfile.mipsel-unknown-linux-gnu
+++ b/docker/Dockerfile.mipsel-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-mipsel-linux-gnu \
     libc6-dev-mipsel-cross
 
diff --git a/docker/Dockerfile.powerpc-unknown-linux-gnu b/docker/Dockerfile.powerpc-unknown-linux-gnu
index a14772e55..984d0119f 100644
--- a/docker/Dockerfile.powerpc-unknown-linux-gnu
+++ b/docker/Dockerfile.powerpc-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-powerpc-linux-gnu \
     libc6-dev-powerpc-cross
 
diff --git a/docker/Dockerfile.powerpc64-unknown-linux-gnu b/docker/Dockerfile.powerpc64-unknown-linux-gnu
index 8ca72e816..f6c9da519 100644
--- a/docker/Dockerfile.powerpc64-unknown-linux-gnu
+++ b/docker/Dockerfile.powerpc64-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-powerpc64-linux-gnu \
     libc6-dev-ppc64-cross
 
diff --git a/docker/Dockerfile.powerpc64le-unknown-linux-gnu b/docker/Dockerfile.powerpc64le-unknown-linux-gnu
index 4c8ef0a20..50e73063b 100644
--- a/docker/Dockerfile.powerpc64le-unknown-linux-gnu
+++ b/docker/Dockerfile.powerpc64le-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-powerpc64le-linux-gnu \
     libc6-dev-ppc64el-cross
 
diff --git a/docker/Dockerfile.s390x-unknown-linux-gnu b/docker/Dockerfile.s390x-unknown-linux-gnu
index 04405d002..0afeeca10 100644
--- a/docker/Dockerfile.s390x-unknown-linux-gnu
+++ b/docker/Dockerfile.s390x-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-s390x-linux-gnu \
     libc6-dev-s390x-cross
 
diff --git a/docker/Dockerfile.sparc64-unknown-linux-gnu b/docker/Dockerfile.sparc64-unknown-linux-gnu
index f423473ef..33fe9a755 100644
--- a/docker/Dockerfile.sparc64-unknown-linux-gnu
+++ b/docker/Dockerfile.sparc64-unknown-linux-gnu
@@ -9,7 +9,7 @@ RUN /cmake.sh
 COPY xargo.sh /
 RUN /xargo.sh
 
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     g++-sparc64-linux-gnu \
     libc6-dev-sparc64-cross
 
diff --git a/docker/Dockerfile.thumbv6m-none-eabi b/docker/Dockerfile.thumbv6m-none-eabi
index 85da4a4ad..dd7b0b91b 100644
--- a/docker/Dockerfile.thumbv6m-none-eabi
+++ b/docker/Dockerfile.thumbv6m-none-eabi
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     gcc-arm-none-eabi \
     libnewlib-arm-none-eabi && \
     /qemu.sh arm
diff --git a/docker/Dockerfile.thumbv7em-none-eabi b/docker/Dockerfile.thumbv7em-none-eabi
index 3cd744f44..d98b17d17 100644
--- a/docker/Dockerfile.thumbv7em-none-eabi
+++ b/docker/Dockerfile.thumbv7em-none-eabi
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     gcc-arm-none-eabi \
     libnewlib-arm-none-eabi && \
     /qemu.sh arm
diff --git a/docker/Dockerfile.thumbv7em-none-eabihf b/docker/Dockerfile.thumbv7em-none-eabihf
index e3eec0335..495eb1974 100644
--- a/docker/Dockerfile.thumbv7em-none-eabihf
+++ b/docker/Dockerfile.thumbv7em-none-eabihf
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     gcc-arm-none-eabi \
     libnewlib-arm-none-eabi && \
     /qemu.sh arm
diff --git a/docker/Dockerfile.thumbv7m-none-eabi b/docker/Dockerfile.thumbv7m-none-eabi
index bb92ad7a9..a9a1d43fa 100644
--- a/docker/Dockerfile.thumbv7m-none-eabi
+++ b/docker/Dockerfile.thumbv7m-none-eabi
@@ -10,7 +10,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 COPY qemu.sh /
-RUN apt-get install -y --no-install-recommends \
+RUN apt-get install --assume-yes --no-install-recommends \
     gcc-arm-none-eabi \
     libnewlib-arm-none-eabi && \
     /qemu.sh arm
diff --git a/docker/Dockerfile.wasm32-unknown-emscripten b/docker/Dockerfile.wasm32-unknown-emscripten
index b7deb01b2..59425eae5 100644
--- a/docker/Dockerfile.wasm32-unknown-emscripten
+++ b/docker/Dockerfile.wasm32-unknown-emscripten
@@ -23,7 +23,7 @@ ENV PATH="${EMSDK}:${EMSDK}/emscripten/sdk:${EMSDK}/llvm/clang/bin:${EMSDK}/node
 
 ENTRYPOINT ["/emsdk_portable/entrypoint"]
 
-RUN apt-get update && apt-get install -y --no-install-recommends \
+RUN apt-get update && apt-get install --assume-yes --no-install-recommends \
   libxml2 \
   python
 
diff --git a/docker/Dockerfile.x86_64-pc-windows-gnu b/docker/Dockerfile.x86_64-pc-windows-gnu
index 8c3eacf3a..18d8c0c6e 100644
--- a/docker/Dockerfile.x86_64-pc-windows-gnu
+++ b/docker/Dockerfile.x86_64-pc-windows-gnu
@@ -10,13 +10,13 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 RUN dpkg --add-architecture i386 && apt-get update && \
-    apt-get install -y --no-install-recommends \
+    apt-get install --assume-yes --no-install-recommends \
         wine-stable \
         wine64 \
         wine32 \
         libz-mingw-w64-dev
 
-RUN apt-get install -y --no-install-recommends g++-mingw-w64-x86-64
+RUN apt-get install --assume-yes --no-install-recommends g++-mingw-w64-x86-64
 
 # run-detectors are responsible for calling the correct interpreter for exe
 # files. For some reason it does not work inside a docker container (it works
diff --git a/docker/android-ndk.sh b/docker/android-ndk.sh
index 526ce7555..7773ef183 100755
--- a/docker/android-ndk.sh
+++ b/docker/android-ndk.sh
@@ -19,7 +19,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/android-system.sh b/docker/android-system.sh
index 6f747c3e2..68fdf46af 100755
--- a/docker/android-system.sh
+++ b/docker/android-system.sh
@@ -44,7 +44,7 @@ EOF
     local purge_list=(default-jre)
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/cmake.sh b/docker/cmake.sh
index 83df5a19e..8aa097543 100755
--- a/docker/cmake.sh
+++ b/docker/cmake.sh
@@ -18,7 +18,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/common.sh b/docker/common.sh
index 493957199..172e90baa 100755
--- a/docker/common.sh
+++ b/docker/common.sh
@@ -11,7 +11,7 @@ sed -i 's/http:\/\/\(.*\).ubuntu.com\/ubuntu\//[arch=amd64,i386] http:\/\/\1.arc
 
 apt-get update
 
-apt-get install -y --no-install-recommends \
+apt-get install --assume-yes --no-install-recommends \
   autoconf \
   automake \
   binutils \
diff --git a/docker/disabled/Dockerfile.i686-pc-windows-gnu b/docker/disabled/Dockerfile.i686-pc-windows-gnu
index 67dca2e02..8d4c9827b 100644
--- a/docker/disabled/Dockerfile.i686-pc-windows-gnu
+++ b/docker/disabled/Dockerfile.i686-pc-windows-gnu
@@ -7,7 +7,7 @@ COPY xargo.sh /
 RUN /xargo.sh
 
 RUN dpkg --add-architecture i386 && apt-get update && \
-    apt-get install -y --no-install-recommends \
+    apt-get install --assume-yes --no-install-recommends \
         wine-stable \
         wine64 \
         wine32 \
diff --git a/docker/disabled/dragonfly.sh b/docker/disabled/dragonfly.sh
index 8d2b7e738..50ada5c8e 100755
--- a/docker/disabled/dragonfly.sh
+++ b/docker/disabled/dragonfly.sh
@@ -25,7 +25,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/dropbear.sh b/docker/dropbear.sh
index 865273648..09a5743dc 100755
--- a/docker/dropbear.sh
+++ b/docker/dropbear.sh
@@ -20,7 +20,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/emscripten.sh b/docker/emscripten.sh
index 5b89c9305..c014cf74e 100755
--- a/docker/emscripten.sh
+++ b/docker/emscripten.sh
@@ -16,7 +16,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/freebsd.sh b/docker/freebsd.sh
index f711a3003..b35b8f046 100755
--- a/docker/freebsd.sh
+++ b/docker/freebsd.sh
@@ -24,7 +24,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/linux-image.sh b/docker/linux-image.sh
index 5e8418bcb..a2e3479b0 100755
--- a/docker/linux-image.sh
+++ b/docker/linux-image.sh
@@ -97,7 +97,7 @@ main() {
     apt-get update
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/mingw.sh b/docker/mingw.sh
index 15569c14d..6c0e544cb 100644
--- a/docker/mingw.sh
+++ b/docker/mingw.sh
@@ -9,7 +9,7 @@ main() {
 
     # Install mingw (with sjlj exceptions) to get the dependencies right
     # Later we replace these packages with the new ones
-    apt-get install -y --no-install-recommends g++-mingw-w64-i686
+    apt-get install --assume-yes --no-install-recommends g++-mingw-w64-i686
 
     local td=$(mktemp -d)
 
@@ -22,7 +22,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep > /dev/null; then
-            apt-get install -y --no-install-recommends $dep
+            apt-get install --assume-yes --no-install-recommends $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/musl.sh b/docker/musl.sh
index f900d9c85..878c896b0 100755
--- a/docker/musl.sh
+++ b/docker/musl.sh
@@ -30,7 +30,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/netbsd.sh b/docker/netbsd.sh
index 31894626b..e75be9fe2 100755
--- a/docker/netbsd.sh
+++ b/docker/netbsd.sh
@@ -23,7 +23,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/qemu.sh b/docker/qemu.sh
index 4beb452ca..4c0055c12 100755
--- a/docker/qemu.sh
+++ b/docker/qemu.sh
@@ -44,7 +44,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/solaris.sh b/docker/solaris.sh
index 75afa5086..6b9a4320d 100755
--- a/docker/solaris.sh
+++ b/docker/solaris.sh
@@ -26,7 +26,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/docker/xargo.sh b/docker/xargo.sh
index 6d631122a..98b2eded0 100755
--- a/docker/xargo.sh
+++ b/docker/xargo.sh
@@ -13,7 +13,7 @@ main() {
     local purge_list=()
     for dep in ${dependencies[@]}; do
         if ! dpkg -L $dep; then
-            apt-get install --no-install-recommends -y $dep
+            apt-get install --no-install-recommends --assume-yes $dep
             purge_list+=( $dep )
         fi
     done
diff --git a/src/docker.rs b/src/docker.rs
index 84b99d2b7..d9ca3c60a 100644
--- a/src/docker.rs
+++ b/src/docker.rs
@@ -38,7 +38,7 @@ pub fn register(target: &Target, verbose: bool) -> Result<()> {
         "mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc && \
             echo ':wine:M::MZ::/usr/bin/run-detectors:' > /proc/sys/fs/binfmt_misc/register"
     } else {
-        "apt-get update && apt-get install --no-install-recommends -y \
+        "apt-get update && apt-get install --no-install-recommends --assume-yes \
             binfmt-support qemu-user-static"
     };