diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 49329f0..29df9a6 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -28,7 +28,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        go: [ "1.17", "1.18", "1.19", "1.20" ]
+        go: [ "1.18", "1.19", "1.20", "1.21", "1.22", "1.23" ]
 
     steps:
     - name: Set up Go 1.x
diff --git a/helper_test.go b/helper_test.go
index 562e9d2..3bb6cc0 100644
--- a/helper_test.go
+++ b/helper_test.go
@@ -79,8 +79,8 @@ func TestMatchURLFallback(t *testing.T) {
 	}{
 		{
 			name:     "Match Path",
-			text:     "foo bar https://example.org/せかい zoo",
-			expected: "https://webcache.googleusercontent.com/search?q=cache:https://example.org/%E3%81%9B%E3%81%8B%E3%81%84",
+			text:     "foo bar https://go.dev/せかい zoo",
+			expected: "https://webcache.googleusercontent.com/search?q=cache:https://go.dev/%E3%81%9B%E3%81%8B%E3%81%84",
 		},
 		{
 			name:     "Match and Use Google Cache",