diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 32b656e4..0babfc15 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,6 @@ concurrency:
     cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 env:
-  RUST_TOOLCHAIN_NIGHTLY: nightly-2024-07-19
   CARGO_TERM_COLOR: always
   CACHE_KEY_SUFFIX: 20240821
 
@@ -122,7 +121,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        rust_toolchain: [stable, 1.81.0, ${{ env.RUST_TOOLCHAIN_NIGHTLY }}]
+        rust_toolchain: [stable, 1.81.0, nightly-2024-07-19]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
@@ -250,7 +249,7 @@ jobs:
       - name: Install rust toolchain
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: ${{ env.RUST_TOOLCHAIN_NIGHTLY }}
+          toolchain: nightly-2024-07-19
       - name: Cache Cargo home
         uses: actions/cache@v4
         id: cache
@@ -268,7 +267,7 @@ jobs:
           RUST_LOG: info
           CI: true
         run: |-
-          cargo +${{ env.RUST_TOOLCHAIN_NIGHTLY }} test --lib --bins --tests --target x86_64-unknown-linux-gnu -- --nocapture
+          cargo +nightly-2024-07-19 test --lib --bins --tests --target x86_64-unknown-linux-gnu -- --nocapture
       - name: Run foyer-bench With Address Sanitizer
         env:
           RUST_BACKTRACE: 1
@@ -276,7 +275,7 @@ jobs:
           RUST_LOG: info
           CI: true
         run: |-
-          cargo +${{ env.RUST_TOOLCHAIN_NIGHTLY }} build --all --target x86_64-unknown-linux-gnu
+          cargo +nightly-2024-07-19 build --all --target x86_64-unknown-linux-gnu
           mkdir -p $GITHUB_WORKSPACE/foyer-data/foyer-bench/asan
           timeout 2m ./target/x86_64-unknown-linux-gnu/debug/foyer-bench --dir $GITHUB_WORKSPACE/foyer-data/foyer-bench/asan --mem 16MiB --disk 256MiB --region-size 16MiB --get-range 1000 --w-rate 1MiB --r-rate 1MiB --admission-rate-limit 10MiB --time 60
       - name: Prepare Artifacts on Failure
@@ -298,7 +297,7 @@ jobs:
       - name: Install rust toolchain
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: ${{ env.RUST_TOOLCHAIN_NIGHTLY }}
+          toolchain: nightly-2024-07-19
       - name: Cache Cargo home
         uses: actions/cache@v4
         id: cache
@@ -316,7 +315,7 @@ jobs:
           RUST_LOG: info
           CI: true
         run: |-
-          cargo +${{ env.RUST_TOOLCHAIN_NIGHTLY }} test --lib --bins --tests --target x86_64-unknown-linux-gnu -- --nocapture
+          cargo +nightly-2024-07-19 test --lib --bins --tests --target x86_64-unknown-linux-gnu -- --nocapture
       - name: Run foyer-bench With Leak Sanitizer
         env:
           RUST_BACKTRACE: 1
@@ -324,7 +323,7 @@ jobs:
           RUST_LOG: info
           CI: true
         run: |-
-          cargo +${{ env.RUST_TOOLCHAIN_NIGHTLY }} build --all --target x86_64-unknown-linux-gnu
+          cargo +nightly-2024-07-19 build --all --target x86_64-unknown-linux-gnu
           mkdir -p $GITHUB_WORKSPACE/foyer-data/foyer-bench/lsan
           timeout 2m ./target/x86_64-unknown-linux-gnu/debug/foyer-bench --dir $GITHUB_WORKSPACE/foyer-data/foyer-bench/lsan --mem 16MiB --disk 256MiB --region-size 16MiB --get-range 1000 --w-rate 1MiB --r-rate 1MiB --admission-rate-limit 10MiB --time 60
       - name: Prepare Artifacts on Failure