diff --git a/.github/workflows/label-bugs.yml b/.github/workflows/label-bugs.yml
index ad4d191a..0b1e2963 100644
--- a/.github/workflows/label-bugs.yml
+++ b/.github/workflows/label-bugs.yml
@@ -20,4 +20,4 @@ jobs:
         uses: GongT/cancel-previous-workflows@master
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          DELETE: true
+          DELETE: 'yes'
diff --git a/.github/workflows/label-duplicates.yml b/.github/workflows/label-duplicates.yml
index 4cc35774..4cfd39f5 100644
--- a/.github/workflows/label-duplicates.yml
+++ b/.github/workflows/label-duplicates.yml
@@ -20,4 +20,4 @@ jobs:
         uses: GongT/cancel-previous-workflows@master
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          DELETE: true
+          DELETE: 'yes'