diff --git a/contrib/reprobuild/Dockerfile.focal b/contrib/reprobuild/Dockerfile.focal
index 80a2ab8e770e..0dd8b1d2c5d1 100644
--- a/contrib/reprobuild/Dockerfile.focal
+++ b/contrib/reprobuild/Dockerfile.focal
@@ -45,7 +45,7 @@ RUN wget https://bootstrap.pypa.io/get-pip.py -O /tmp/get-pip.py && python3 /tmp
 RUN wget https://sh.rustup.rs -O rustup-install.sh && \
     bash rustup-install.sh --default-toolchain none --quiet -y && \
     rm rustup-install.sh && \
-    /root/.cargo/bin/rustup install 1.65
+    /root/.cargo/bin/rustup install 1.73
 
 # Download protoc manually, it is in the update repos which we
 # disabled above, so `apt-get` can't find it anymore.
diff --git a/contrib/reprobuild/Dockerfile.jammy b/contrib/reprobuild/Dockerfile.jammy
index 776dd2513cb0..024067b2d979 100644
--- a/contrib/reprobuild/Dockerfile.jammy
+++ b/contrib/reprobuild/Dockerfile.jammy
@@ -46,7 +46,7 @@ RUN wget https://bootstrap.pypa.io/get-pip.py -O /tmp/get-pip.py && python3 /tmp
 RUN wget https://sh.rustup.rs -O rustup-install.sh && \
     bash rustup-install.sh --default-toolchain none --quiet -y && \
     rm rustup-install.sh && \
-    /root/.cargo/bin/rustup install 1.65
+    /root/.cargo/bin/rustup install 1.73
 
 # Download protoc manually, it is in the update repos which we
 # disabled above, so `apt-get` can't find it anymore.