diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2a46ff..661f541 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,8 +16,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust stable
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@master
         with:
+          toolchain: 1.97.1
           targets: wasm32-unknown-unknown
           components: rustfmt, clippy
 
@@ -46,8 +47,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust stable
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@master
         with:
+          toolchain: 1.97.1
           targets: wasm32-unknown-unknown
 
       - name: Cache cargo registry and target
@@ -75,7 +77,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust stable
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: 1.97.1
 
       - name: Cache cargo registry and target
         uses: actions/cache@v4
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..5222b17
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.97.1"
+targets = ["wasm32-unknown-unknown"]
+components = ["rustfmt", "clippy"]