diff --git a/.github/workflows/jruby-nightly.yml b/.github/workflows/jruby-nightly.yml
index e8fadb6..6a91276 100644
--- a/.github/workflows/jruby-nightly.yml
+++ b/.github/workflows/jruby-nightly.yml
@@ -10,7 +10,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: rm Gemfile.lock
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: jruby-head
diff --git a/.github/workflows/truffleruby-nightly.yml b/.github/workflows/truffleruby-nightly.yml
index 78e623d..318b0c5 100644
--- a/.github/workflows/truffleruby-nightly.yml
+++ b/.github/workflows/truffleruby-nightly.yml
@@ -10,7 +10,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: rm Gemfile.lock
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: truffleruby-head