diff --git a/frontend/Makefile b/frontend/Makefile
index 1ab20055..931743f4 100644
--- a/frontend/Makefile
+++ b/frontend/Makefile
@@ -57,13 +57,13 @@ start:
 
 .PHONY: lint
 lint:
-	$(bindir)/eslint .
+	$(bindir)/eslint . --cache
 #	$(bindir)/stylelint './src/**/*.js'
 
 .PHONY: lint-ci
 lint-ci:
 	mkdir -p $(XUNIT_DIR)
-	-$(bindir)/eslint . --format tap | $(XUNIT) $(XUNIT_OUTPUT)-lint.xml
+	-$(bindir)/eslint . --cache --format tap | $(XUNIT) $(XUNIT_OUTPUT)-lint.xml
 
 .PHONY: licence-check
 licence-check:
diff --git a/ui/Makefile b/ui/Makefile
index 6549b603..2b097703 100644
--- a/ui/Makefile
+++ b/ui/Makefile
@@ -59,13 +59,13 @@ clean:
 
 .PHONY: lint
 lint:
-	$(bindir)/eslint .
+	$(bindir)/eslint . --cache
 #	$(bindir)/stylelint './src/**/*.js'
 
 .PHONY: lint-ci
 lint-ci:
 	mkdir -p $(XUNIT_DIR)
-	-$(bindir)/eslint . --format tap | $(XUNIT) $(XUNIT_OUTPUT)-lint.xml
+	-$(bindir)/eslint . --cache --format tap | $(XUNIT) $(XUNIT_OUTPUT)-lint.xml
 
 .PHONY: publish
 publish: