diff --git a/.github/workflows/devtools.yml b/.github/workflows/devtools.yml
index e50664f2..5061ab51 100644
--- a/.github/workflows/devtools.yml
+++ b/.github/workflows/devtools.yml
@@ -11,7 +11,7 @@ name: Devtools
 
 env:
   AS: nasm
-  STABLE_RUST_TOOLCHAIN: 1.66.0
+  STABLE_RUST_TOOLCHAIN: 1.74.0
   NIGHTLY_RUST_TOOLCHAIN: nightly-2023-08-28
   TOOLCHAIN_PROFILE: minimal
 
diff --git a/.github/workflows/library.yml b/.github/workflows/library.yml
index bd45dada..08b8dc05 100644
--- a/.github/workflows/library.yml
+++ b/.github/workflows/library.yml
@@ -11,7 +11,7 @@ name: Library Crates
 
 env:
   AS: nasm
-  STABLE_RUST_TOOLCHAIN: 1.66.0
+  STABLE_RUST_TOOLCHAIN: 1.74.0
   NIGHTLY_RUST_TOOLCHAIN: nightly-2023-08-28
   TOOLCHAIN_PROFILE: minimal
 
diff --git a/Makefile b/Makefile
index e9f2a653..e20a99c0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 export CARGO=cargo
-export STABLE_TOOLCHAIN:=1.66.0
+export STABLE_TOOLCHAIN:=1.74.0
 export NIGHTLY_TOOLCHAIN:=nightly-2023-08-28
 export BUILD_TYPE:=release
 export PREFIX:=/usr/local
diff --git a/devtools/dev_container/Dockerfile b/devtools/dev_container/Dockerfile
index 6bad954e..3c4e055e 100644
--- a/devtools/dev_container/Dockerfile
+++ b/devtools/dev_container/Dockerfile
@@ -18,7 +18,7 @@ RUN apt-get update && \
 
 # Install rustup and a fixed version of Rust.
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain nightly-2023-08-28
-RUN rustup toolchain install 1.66.0
+RUN rustup toolchain install 1.74.0
 RUN rustup component add rust-src
 RUN rustup component add llvm-tools-preview
 COPY cargo_config /root/.cargo/config