diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index 7c18a405..5cd62312 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nightly toolchain
-        uses: dtolnay/rust-toolchain@nightly
+        uses: dtolnay/rust-toolchain@nightly-2024-02-01
 
       - name: Set up rust cache
         uses: Swatinem/rust-cache@v2
@@ -77,7 +77,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nightly toolchain
-        uses: dtolnay/rust-toolchain@nightly
+        uses: dtolnay/rust-toolchain@nightly-2024-02-01
         with:
           targets: wasm32-unknown-unknown
 
@@ -112,7 +112,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install nightly toolchain
-        uses: dtolnay/rust-toolchain@nightly
+        uses: dtolnay/rust-toolchain@nightly-2024-02-01
         with:
           components: rustfmt, clippy
 
diff --git a/rust-toolchain b/rust-toolchain
index 07ade694..471d867d 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly
\ No newline at end of file
+nightly-2024-02-01
\ No newline at end of file