diff --git a/.github/auto_assign.yaml b/.github/auto_assign.yml
similarity index 70%
rename from .github/auto_assign.yaml
rename to .github/auto_assign.yml
index 2d5c8955..a2ec26be 100644
--- a/.github/auto_assign.yaml
+++ b/.github/auto_assign.yml
@@ -1,3 +1,3 @@
 addReviewers: true
 reviewers: [/mtfwiki-editors]
-numberOfReviewers: 1
+numberOfReviewers: 0
diff --git a/.github/workflows/auto-assign.yml b/.github/workflows/auto-assign.yml
new file mode 100644
index 00000000..a749d0ca
--- /dev/null
+++ b/.github/workflows/auto-assign.yml
@@ -0,0 +1,11 @@
+name: Auto Assign
+
+on:
+  pull_request:
+    types: [opened, ready_for_review]
+
+jobs:
+  add-reviews:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: kentaro-m/auto-assign-action@v1.2.5
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 0654f489..4c45e48c 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -8,6 +8,6 @@ jobs:
     permissions:
       contents: read
       pull-requests: write
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/labeler@v4