diff --git a/.github/workflows/cargo_test.yml b/.github/workflows/cargo_test.yml
index b0c6a59..698dbbb 100644
--- a/.github/workflows/cargo_test.yml
+++ b/.github/workflows/cargo_test.yml
@@ -32,6 +32,7 @@ jobs:
           else
             rustup update
           fi
+          rustup default stable
         shell: bash
 
       - name: "cargo test"
diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
index d438a48..38675d1 100644
--- a/.github/workflows/publish_pypi.yml
+++ b/.github/workflows/publish_pypi.yml
@@ -82,21 +82,21 @@ jobs:
         run: |
           export PATH="$HOME/.cargo/bin:$HOME/.osxcross/bin:$PATH"
           maturin sdist --out dist
-          rustup default nightly
+          rustup default stable
           
-          rustup target add x86_64-unknown-linux-gnu --toolchain nightly
+          rustup target add x86_64-unknown-linux-gnu
           maturin build --release --out dist --target x86_64-unknown-linux-gnu
-          rustup target add aarch64-unknown-linux-gnu --toolchain nightly
+          rustup target add aarch64-unknown-linux-gnu
           maturin build --release --out dist --target aarch64-unknown-linux-gnu --zig
           
-          rustup target add x86_64-pc-windows-msvc --toolchain nightly
+          rustup target add x86_64-pc-windows-msvc
           maturin build --release --out dist --target x86_64-pc-windows-msvc
-          rustup target add aarch64-pc-windows-msvc --toolchain nightly
+          rustup target add aarch64-pc-windows-msvc
           maturin build --release --out dist --target aarch64-pc-windows-msvc
           
-          rustup target add x86_64-apple-darwin --toolchain nightly
+          rustup target add x86_64-apple-darwin
           maturin build --release --out dist --target x86_64-apple-darwin --zig
-          rustup target add aarch64-apple-darwin --toolchain nightly
+          rustup target add aarch64-apple-darwin
           maturin build --release --out dist --target aarch64-apple-darwin --zig
 
       - name: Store cache