diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 436ecdf..7b6f6a1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -111,7 +111,7 @@ jobs:
           docker push ghcr.io/ruby/ruby:$tag
         done
 
-    - uses: ruby/action-slack@54175162371f1f7c8eb94d7c8644ee2479fcd375 # v3.2.2
+    - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
       with:
         payload: |
           {
@@ -184,7 +184,7 @@ jobs:
              ubuntu_version="${{ matrix.ubuntu_version }}" \
              image_version_suffix=${{ matrix.image_version_suffix }}
 
-    - uses: ruby/action-slack@54175162371f1f7c8eb94d7c8644ee2479fcd375 # v3.2.2
+    - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
       with:
         payload: |
           {