diff --git a/Makefile b/Makefile
index 45daa10..2db8c0e 100755
--- a/Makefile
+++ b/Makefile
@@ -97,7 +97,7 @@ test-bundle: ## run small (unit) tests
 test-bundle: build-bundle
 	$(NODE_BIN)/nyc --report-dir="$(TARGET_PATH)/coverage" --exclude-after-remap \
 		--reporter=html --reporter=lcov --reporter=text-summary \
-		$(NODE_BIN)/mocha $(TARGET_PATH)/test.js
+		$(NODE_BIN)/mocha --timeout 5000 $(TARGET_PATH)/test.js
 
 test-rules: ## validate the rules directory
 test-rules: build-bundle
diff --git a/test/error/TestError.ts b/test/error/TestError.ts
index 009e22f..1fa6c39 100644
--- a/test/error/TestError.ts
+++ b/test/error/TestError.ts
@@ -12,18 +12,18 @@ const errors = [
 describe('errors', () => {
   for (const errorType of errors) {
     describe(kebabCase(errorType.name), () => {
-      xit('should have a message', () => {
+      it('should have a message', () => {
         const err = new errorType();
         expect(err.message).to.not.equal('');
       });
 
-      xit('should include nested errors in the stack trace', () => {
+      it('should include nested errors in the stack trace', () => {
         const inner = new Error('inner error');
         const err = new errorType('outer error', inner);
         expect(err.stack).to.include('inner', 'inner error message').and.include('outer', 'outer error message');
       });
 
-      xit('should have the nested error', () => {
+      it('should have the nested error', () => {
         const inner = new Error('inner error');
         const err = new errorType('outer error', inner);
         expect(err.cause()).to.equal(inner);