diff --git a/tests/alloydb_test.go b/tests/alloydb_test.go
index a5bde125..a542485a 100644
--- a/tests/alloydb_test.go
+++ b/tests/alloydb_test.go
@@ -108,10 +108,6 @@ func TestPostgresAuthWithToken(t *testing.T) {
 	if testing.Short() {
 		t.Skip("skipping Postgres integration tests")
 	}
-	_, isFlex := os.LookupEnv("FLEX")
-	if isFlex {
-		t.Skip("App Engine Flex doesn't support retrieving OAuth2 tokens")
-	}
 	requirePostgresVars(t)
 	tok, _, cleanup2 := removeAuthEnvVar(t, true)
 	defer cleanup2()