diff --git a/Makefile b/Makefile
index b851ee6..e44faad 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ fmt:
 	@go fmt ./...
 
 .PHONY: check
-check: .check-fmt .check-vet .check-lint .check-ineffassign .check-mega .check-misspell
+check: .check-fmt .check-vet .check-lint .check-ineffassign .check-mega .check-misspell .check-vendor
 
 .PHONY: .check-fmt
 .check-fmt:
@@ -38,6 +38,10 @@ check: .check-fmt .check-vet .check-lint .check-ineffassign .check-mega .check-m
 .check-mega:
 	@megacheck ./...
 
+.PHONY: .check-vendor
+.check-vendor:
+	@dep ensure -no-vendor -dry-run
+
 .PHONY: test
 test:
 	@echo "==> Running tests (race)..."