diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 27ef0e3..4d94818 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,9 +1,10 @@
-FROM mcr.microsoft.com/vscode/devcontainers/rust
+FROM mcr.microsoft.com/vscode/devcontainers/rust:0.202.9-bullseye
 
 RUN sudo apt-get update -y \
     && sudo apt-get upgrade -y \
     && sudo apt-get install -y zip ltrace
 
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
 RUN rustup update \
     && rustup target add aarch64-unknown-linux-gnu
 
diff --git a/amzn/Dockerfile b/amzn/Dockerfile
index 553aaef..723d81c 100644
--- a/amzn/Dockerfile
+++ b/amzn/Dockerfile
@@ -1,6 +1,6 @@
 FROM public.ecr.aws/sam/build-nodejs18.x
 
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
 ENV PATH="~/.cargo/bin:${PATH}"
 
 RUN ~/.cargo/bin/rustup update \
diff --git a/amzn/Dockerfile-arm64 b/amzn/Dockerfile-arm64
index 2aca10e..9936aae 100644
--- a/amzn/Dockerfile-arm64
+++ b/amzn/Dockerfile-arm64
@@ -1,6 +1,6 @@
 FROM public.ecr.aws/sam/build-nodejs18.x:latest-arm64
 
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
 ENV PATH="~/.cargo/bin:${PATH}"
 
 RUN ~/.cargo/bin/rustup update \
diff --git a/bin/build-arch b/bin/build-arch
index 795e16f..f0486ef 100755
--- a/bin/build-arch
+++ b/bin/build-arch
@@ -13,7 +13,8 @@ mkdir -p ./build ./target
 
 cargo build \
   --release \
-  --target "${CRYPTEIA_BUILD_TARGET}"
+  --target "${CRYPTEIA_BUILD_TARGET}" \
+  -Z sparse-registry
 
 cp "./target/${CRYPTEIA_BUILD_TARGET}/release/crypteia" "./build/${BIN}"
 cp ./target/${CRYPTEIA_BUILD_TARGET}/release/libcrypteia.so "./build/${LIB}"
diff --git a/debian/Dockerfile-arm64 b/debian/Dockerfile-arm64
index 744f480..dd7a4b1 100644
--- a/debian/Dockerfile-arm64
+++ b/debian/Dockerfile-arm64
@@ -4,7 +4,7 @@ RUN apt update && apt-get install -y python3-pip
 RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 1
 RUN update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1
 
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
 ENV PATH="/root/.cargo/bin:${PATH}"
 
 RUN /root/.cargo/bin/rustup update \