diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c4930eae..0c59d609 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -59,6 +59,7 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          cache-version: 1
 
       - uses: KengoTODA/actions-setup-docker-compose@a25fb82c577d314635e25bac72995718b9296dd2 # main
         env:
diff --git a/.github/workflows/update-gem-version-artifacts.yaml b/.github/workflows/update-gem-version-artifacts.yaml
index b3ead1c9..fbfad798 100644
--- a/.github/workflows/update-gem-version-artifacts.yaml
+++ b/.github/workflows/update-gem-version-artifacts.yaml
@@ -32,6 +32,7 @@ jobs:
         with:
           ruby-version: "3.4"
           bundler-cache: true
+          cache-version: 1
 
       - name: Update RBS collection
         run: |
diff --git a/script/update_ci_yaml b/script/update_ci_yaml
index e100cd07..7da27136 100755
--- a/script/update_ci_yaml
+++ b/script/update_ci_yaml
@@ -141,6 +141,7 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          cache-version: 1
 
       - uses: KengoTODA/actions-setup-docker-compose@a25fb82c577d314635e25bac72995718b9296dd2 # main
         env: