diff --git a/Makefile b/Makefile
index 4010dad..66e57db 100644
--- a/Makefile
+++ b/Makefile
@@ -16,6 +16,9 @@
 tidy: _build/.stamp_venv
 	source _build/venv/bin/activate && black src
 
+grip: _build/.stamp_venv
+	source _build/venv/bin/activate && grip
+
 venv_bash: _build/.stamp_venv
 	source _build/venv/bin/activate && bash
 _build:
diff --git a/requirements.txt b/requirements.txt
index 7e66a17..2f33ed0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
 black
+grip