diff --git a/.github/workflows/annocheck.yml b/.github/workflows/annocheck.yml
index aa87166254..da39efa9e3 100644
--- a/.github/workflows/annocheck.yml
+++ b/.github/workflows/annocheck.yml
@@ -111,8 +111,6 @@ jobs:
 
       ### test-spec doesn't work: https://github.com/ruby/ruby/actions/runs/4340193212/jobs/7578505652
       # - run: make test-spec
-      #   env:
-      #     CHECK_LEAKS: true
 
       - run: make test-annocheck
 
diff --git a/.github/workflows/compilers.yml b/.github/workflows/compilers.yml
index 233f4c5db3..95a89a1a97 100644
--- a/.github/workflows/compilers.yml
+++ b/.github/workflows/compilers.yml
@@ -278,8 +278,6 @@ jobs:
         if: ${{ matrix.entry.check }}
 
       - run: make test-spec
-        env:
-          CHECK_LEAKS: true
         if: ${{ matrix.entry.check }}
 
       - run: make test-annocheck
diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
index f28c91d4af..fb47930423 100644
--- a/.github/workflows/spec_guards.yml
+++ b/.github/workflows/spec_guards.yml
@@ -57,8 +57,6 @@ jobs:
 
       - run: ruby ../mspec/bin/mspec
         working-directory: spec/ruby
-        env:
-          CHECK_LEAKS: true
 
       - uses: ./.github/actions/slack
         with: