diff --git a/Makefile b/Makefile
index ff1891a7c..e40c7e95c 100644
--- a/Makefile
+++ b/Makefile
@@ -52,7 +52,7 @@ install_deposit_contract_test:
 	cd ../..; cd $(DEPOSIT_CONTRACT_DIR); \
 	pip3 install -r requirements-testing.txt
 
-test_deposit_contract:
+test_deposit_contract: $(PY_SPEC_ALL_TARGETS)
 	cd $(PY_SPEC_DIR); python3 -m venv venv; . venv/bin/activate; \
 	cd ../.. && cd $(DEPOSIT_CONTRACT_DIR) && python -m pytest .