diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 18aaf5b0f..c1f2bdcd9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -52,7 +52,7 @@ jobs:
           sudo apt-get install protobuf-compiler
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: nightly
+          toolchain: 1.77.0
           target: wasm32-unknown-unknown
           components: clippy
       - name: List version
@@ -77,7 +77,7 @@ jobs:
           sudo apt-get install protobuf-compiler
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: nightly
+          toolchain: 1.77.0
           target: wasm32-unknown-unknown
       - name: List version
         run: cargo --version
@@ -116,7 +116,7 @@ jobs:
           sudo apt-get install protobuf-compiler
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: nightly
+          toolchain: 1.77.0
           target: wasm32-unknown-unknown
       - name: List version
         run: cargo --version