diff --git a/.github/workflows/semgrep.yml b/.github/workflows/semgrep.yml
new file mode 100644
index 0000000000..8ebe082f50
--- /dev/null
+++ b/.github/workflows/semgrep.yml
@@ -0,0 +1,21 @@
+name: Semgrep
+
+on:
+  pull_request: {}
+  push:
+    branches:
+      - master
+      - '201[7-9][0-1][0-9]'
+      - '202[0-9][0-1][0-9]'
+
+jobs:
+  semgrep:
+    name: Semgrep
+    runs-on: ubuntu-latest
+    container:
+      image: returntocorp/semgrep
+    steps:
+      - uses: actions/checkout@v3
+      - run: semgrep ci
+        env:
+           SEMGREP_RULES: p/default