diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 28d00e7..9fcde0a 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -16,12 +16,6 @@ jobs:
     steps:
       # Setup
       - uses: actions/checkout@v2
-      # Add the Rust setup step here
-      - name: Setup Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.70.0
-          override: true
       - uses: ./.github/actions/setup/
       - uses: ./.github/actions/setup-solana/
       - uses: actions/cache@v2
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..469626e
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.70.0"
\ No newline at end of file