diff --git a/.github/workflows/checks.yaml b/.github/workflows/checks.yaml
index 7eb450d1..7d71da76 100644
--- a/.github/workflows/checks.yaml
+++ b/.github/workflows/checks.yaml
@@ -73,11 +73,11 @@ jobs:
           - package: rbuilder
             features: ""
             scope: integration
-            playground: true
+            playground: "TRUE"
           - package: op-rbuilder
             features: "optimism integration"
             scope: integration::integration_test::tests
-            playground: false
+            playground: ""
     name: Integration tests / ${{ matrix.package }}
     runs-on: warp-ubuntu-latest-x64-32x
     steps: