diff --git a/lib/polardbx-parser-5.4.19-SNAPSHOT-sources.jar b/lib/polardbx-parser-5.4.19-SNAPSHOT-sources.jar
deleted file mode 100644
index 08dcbaa2..00000000
Binary files a/lib/polardbx-parser-5.4.19-SNAPSHOT-sources.jar and /dev/null differ
diff --git a/lib/polardbx-parser-5.4.19-SNAPSHOT.jar b/lib/polardbx-parser-5.4.19-SNAPSHOT.jar
deleted file mode 100644
index 874eec9a..00000000
Binary files a/lib/polardbx-parser-5.4.19-SNAPSHOT.jar and /dev/null differ
diff --git a/pom.xml b/pom.xml
index e2da3599..1940e887 100644
--- a/pom.xml
+++ b/pom.xml
@@ -392,7 +392,7 @@
             <dependency>
                 <groupId>com.alibaba.polardbx</groupId>
                 <artifactId>polardbx-parser</artifactId>
-                <version>5.4.19-SNAPSHOT</version>
+                <version>5.4.19</version>
             </dependency>
 
             <!-- test dependency -->
@@ -533,30 +533,6 @@
                   <additionalparam>-Xdoclint:none</additionalparam>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-install-plugin</artifactId>
-                <version>3.0.1</version>
-                <executions>
-                    <execution>
-                        <id>install-external</id>
-                        <phase>prepare-package</phase>
-                        <configuration>
-                            <file>${basedir}/lib/polardbx-parser-5.4.19-SNAPSHOT.jar</file>
-                            <repositoryLayout>default</repositoryLayout>
-                            <groupId>com.alibaba.polardbx</groupId>
-                            <artifactId>polardbx-parser</artifactId>
-                            <version>5.4.19-SNAPSHOT</version>
-                            <packaging>jar</packaging>
-                            <generatePom>true</generatePom>
-                        </configuration>
-                        <goals>
-                            <goal>install-file</goal>
-                        </goals>
-                        <inherited>false</inherited>
-                    </execution>
-                </executions>
-            </plugin>
         </plugins>
         <pluginManagement>
             <plugins>