diff --git a/subscription/subscription_test.go b/subscription/subscription_test.go
index 9849b82..e4b4159 100644
--- a/subscription/subscription_test.go
+++ b/subscription/subscription_test.go
@@ -25,33 +25,36 @@ func assertMatches(topic packets.Topic, topicName string, shouldMatch bool, t *t
 }
 
 func TestSubscribe(t *testing.T) {
+	t.Parallel()
 	topic, _ := packets.ParseTopic("a/b/c")
-	assertMatches(topic, "a/b/c", true, t)
-	assertMatches(topic, "a/c/c", false, t)
-	assertMatches(topic, "b/b/c", false, t)
-	assertMatches(topic, "aaa/c/a", false, t)
+	go assertMatches(topic, "a/b/c", true, t)
+	go assertMatches(topic, "a/c/c", false, t)
+	go assertMatches(topic, "b/b/c", false, t)
+	go assertMatches(topic, "aaa/c/a", false, t)
 }
 
 func TestSingleLevelWildcard(t *testing.T) {
+	t.Parallel()
 	topic, _ := packets.ParseTopic("a/+/c")
-	assertMatches(topic, "a/b/c", true, t)
-	assertMatches(topic, "a/c/c", true, t)
-	assertMatches(topic, "a/b/d", false, t)
-	assertMatches(topic, "aaa/c/a", false, t)
+	go assertMatches(topic, "a/b/c", true, t)
+	go assertMatches(topic, "a/c/c", true, t)
+	go assertMatches(topic, "a/b/d", false, t)
+	go assertMatches(topic, "aaa/c/a", false, t)
 
 	topic, _ = packets.ParseTopic("+/+/+")
-	assertMatches(topic, "a/b/c", true, t)
-	assertMatches(topic, "a/c/c", true, t)
-	assertMatches(topic, "a/b/d/e", false, t)
-	assertMatches(topic, "c/a", true, t)
+	go assertMatches(topic, "a/b/c", true, t)
+	go assertMatches(topic, "a/c/c", true, t)
+	go assertMatches(topic, "a/b/d/e", false, t)
+	go assertMatches(topic, "c/a", true, t)
 }
 
 func TestMultiLevelWildcard(t *testing.T) {
+	t.Parallel()
 	topic, _ := packets.ParseTopic("a/b/c/#")
-	assertMatches(topic, "a/b/c", true, t)
-	assertMatches(topic, "a/b/c/a", true, t)
-	assertMatches(topic, "a/b/c/d", true, t)
-	assertMatches(topic, "a/b/c/f", true, t)
+	go assertMatches(topic, "a/b/c", true, t)
+	go assertMatches(topic, "a/b/c/a", true, t)
+	go assertMatches(topic, "a/b/c/d", true, t)
+	go assertMatches(topic, "a/b/c/f", true, t)
 
-	assertMatches(topic, "a/b/d/a", false, t)
+	go assertMatches(topic, "a/b/d/a", false, t)
 }