diff --git a/.forgejo/workflows/tests.yml b/.forgejo/workflows/tests.yml
index f66a2c40..e05ff931 100644
--- a/.forgejo/workflows/tests.yml
+++ b/.forgejo/workflows/tests.yml
@@ -20,6 +20,21 @@ jobs:
       - name: Run linters
         run: make lint
 
+    semgrep:
+      name: semgrep
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/checkout@v3
+        - uses: actions/setup-python@v4
+          with:
+            python-version: '3.10'
+
+        - name: Install semgrep
+          run: make semgrep-install
+
+        - name: Run semgrep
+          run: make semgrep
+
   tests:
     name: Tests
     runs-on: ubuntu-latest
diff --git a/Makefile b/Makefile
index 60411546..88d53a4a 100755
--- a/Makefile
+++ b/Makefile
@@ -162,6 +162,15 @@ staticcheck-install:
 staticcheck-run:
 	@staticcheck ./...
 
+semgrep-install:
+	@python3 -m pip install --upgrade virtualenv
+	@python3 -m virtualenv venv
+	@. venv/bin/activate && pip install semgrep
+
+semgrep:
+	@. venv/bin/activate
+	@semgrep --error -f semgrep.yml . || (test $$? -eq 127 && echo "Run: make semgrep-install")
+
 # Run linters in Docker
 docker/lint:
 	docker run --rm -t \
diff --git a/semgrep.yml b/semgrep.yml
new file mode 100644
index 00000000..1b15f156
--- /dev/null
+++ b/semgrep.yml
@@ -0,0 +1,10 @@
+rules:
+- id: find-sprintf
+  languages:
+    - go
+  message: Found fmt.Sprintf usage
+  pattern-either:
+    - pattern: fmt.Sprintf("%d", $VAR)
+    - pattern: fmt.Sprintf("%f", $VAR)
+    - pattern: fmt.Sprintf("%t", $VAR)
+  severity: ERROR