diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2931fa956..b0ebd8852 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -67,15 +67,17 @@ jobs:
         id: install-rust-nightly
         with:
           profile: minimal
-          toolchain: "nightly"
-
+          toolchain: "nightly-2024-07-30"
+      
       - name: Install rust wasm targets
         run: rustup target add wasm32-wasi wasm32-unknown-unknown
 
       - name: Install nightly wasm targets
         run: |
-          rustup component add rust-src --toolchain nightly
-          rustup target add wasm32-unknown-unknown --toolchain nightly
+          nightly_toolchain='nightly-2024-07-30'
+          echo 'STYLUS_NIGHTLY_VER=+'"$nightly_toolchain" >> "$GITHUB_ENV"
+          rustup component add rust-src --toolchain "$nightly_toolchain"
+          rustup target add wasm32-unknown-unknown --toolchain "$nightly_toolchain"
 
       - name: Cache Build Products
         uses: actions/cache@v3