diff --git a/.github/workflows/test-action.yml b/.github/workflows/test-action.yml
index 13c4bf8..ad1a835 100644
--- a/.github/workflows/test-action.yml
+++ b/.github/workflows/test-action.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
-        toolchain: ['1.74', 'stable', 'beta']
+        toolchain: ['1.77', 'stable', 'beta']
         experimental: [false]
         include:
           - os: 'ubuntu-latest'