diff --git a/flink-connector-jdbc-backward-compatibility/pom.xml b/flink-connector-jdbc-backward-compatibility/pom.xml
index 73de6314..7937aa6f 100644
--- a/flink-connector-jdbc-backward-compatibility/pom.xml
+++ b/flink-connector-jdbc-backward-compatibility/pom.xml
@@ -64,6 +64,12 @@
             <type>test-jar</type>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-connector-jdbc-postgres</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.apache.flink</groupId>
             <artifactId>flink-connector-jdbc-postgres</artifactId>