diff --git a/Makefile b/Makefile
index 68b8fd3ba..69d34910d 100644
--- a/Makefile
+++ b/Makefile
@@ -110,6 +110,7 @@ COV_FILE := lcov.info
 
 .PHONY: test-unit
 test-unit: ## Run unit tests.
+	cargo install cargo-nextest --locked
 	cargo nextest run $(UNIT_TEST_ARGS)
 
 .PHONY: cov-unit