diff --git a/.github/filters.yml b/.github/filters.yml
new file mode 100644
index 0000000000000..96b4ba9371251
--- /dev/null
+++ b/.github/filters.yml
@@ -0,0 +1,11 @@
+# Filters for https://github.com/dorny/paths-filter
+
+phpunit:
+  - '**/*.json'
+  - '**/*.php'
+  - '**/*.sh'
+  - '**/*.xml'
+  - '**/*.yml'
+  - '**/tests/**'
+  - '3rdparty'
+  - 'apps/theming/css'
diff --git a/.github/workflows/nodb.yml b/.github/workflows/nodb.yml
index 4191bc985428e..ad18938831203 100644
--- a/.github/workflows/nodb.yml
+++ b/.github/workflows/nodb.yml
@@ -16,10 +16,32 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  phpunit-nodb:
+  changes:
     runs-on: ubuntu-latest
+    name: nodb-changes
 
-    if: ${{ github.repository_owner != 'nextcloud-gmbh' }}
+    # Required permissions
+    permissions:
+      pull-requests: read
+    # Set job outputs to values from filter step
+    outputs:
+      phpunit: ${{ steps.filter.outputs.phpunit }}
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        with:
+          submodules: true
+      - uses: dorny/paths-filter@4512585405083f25c027a35db413c2b3b9006d50 # v2.11.1
+        id: filter
+        with:
+          filters: .github/filters.yml
+
+  phpunit:
+    runs-on: ubuntu-latest
+    name: nodb-phpunit
+
+    needs: changes
+    if: ${{ github.repository_owner != 'nextcloud-gmbh' && needs.changes.outputs.phpunit == 'true'  }}
 
     strategy:
       matrix:
@@ -65,16 +87,16 @@ jobs:
         # run: phpunit --configuration phpunit-autotest.xml --exclude-group DB,SLOWDB,PRIMARY-azure,PRIMARY-s3,PRIMARY-swift
         run: phpunit --configuration phpunit-autotest.xml --exclude-group DB,SLOWDB
 
-  summary-nodb:
-    permissions:
-      contents: none
+  summary:
     runs-on: ubuntu-latest
-    needs: phpunit-nodb
+    name: nodb-summary
 
+    needs: [changes, phpunit]
     if: always()
 
-    name: phpunit-nodb-summary
+    permissions:
+      contents: none
 
     steps:
       - name: Summary status
-        run: if ${{ needs.phpunit-nodb.result != 'success' }}; then exit 1; fi
+        run: if ${{ needs.changes.outputs.phpunit == 'true' && needs.phpunit.result != 'success' }}; then exit 1; fi