diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index eb63a9f..7247c9b 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2.3.4
 
-      - uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@v1.0.7
         with:
           toolchain: nightly
           override: true
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 29c85de..cc2be99 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     - uses: actions/checkout@v2.3.4
     # Because we use nightly features for building docs,
     # using --all-features will fail without nightly toolchain.
-    - uses: actions-rs/toolchain@v1
+    - uses: actions-rs/toolchain@v1.0.7
       with:
         toolchain: nightly
         override: true