diff --git a/pom.xml b/pom.xml
index 58915162e1fb4e2f68687ab18de30b060bee6a98..e7e91cef248e3ee3940838ccd51848a4f849f684 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1696,5 +1696,9 @@ flexible messaging model and an intuitive client API.</description>
       <name>bintray</name>
       <url>https://yahoo.bintray.com/maven</url>
     </repository>
+    <repository>
+      <id>spring-plugins-release</id>
+      <url>https://repo.spring.io/plugins-release/</url>
+    </repository>
   </repositories>
 </project>
diff --git a/pulsar-functions/utils/src/test/java/org/apache/pulsar/functions/utils/FunctionCommonTest.java b/pulsar-functions/utils/src/test/java/org/apache/pulsar/functions/utils/FunctionCommonTest.java
index 2fbb6c0b22d1b3f94c7b4c5be04a9ecbcb715196..0e34e2997c571fce70f274e23564a5f61d5a462b 100644
--- a/pulsar-functions/utils/src/test/java/org/apache/pulsar/functions/utils/FunctionCommonTest.java
+++ b/pulsar-functions/utils/src/test/java/org/apache/pulsar/functions/utils/FunctionCommonTest.java
@@ -57,7 +57,7 @@ public class FunctionCommonTest {
     @Test
     public void testValidateHttpFileUrl() throws Exception {
 
-        String jarHttpUrl = "http://central.maven.org/maven2/org/apache/pulsar/pulsar-common/1.22.0-incubating/pulsar-common-1.22.0-incubating.jar";
+        String jarHttpUrl = "https://repo1.maven.org/maven2/org/apache/pulsar/pulsar-common/2.4.2/pulsar-common-2.4.2.jar";
         FunctionCommon.extractClassLoader(jarHttpUrl);
 
         jarHttpUrl = "http://_invalidurl_.com";
@@ -72,7 +72,7 @@ public class FunctionCommonTest {
 
     @Test
     public void testDownloadFile() throws Exception {
-        String jarHttpUrl = "http://central.maven.org/maven2/org/apache/pulsar/pulsar-common/1.22.0-incubating/pulsar-common-1.22.0-incubating.jar";
+        String jarHttpUrl = "https://repo1.maven.org/maven2/org/apache/pulsar/pulsar-common/2.4.2/pulsar-common-2.4.2.jar";
         String testDir = FunctionCommonTest.class.getProtectionDomain().getCodeSource().getLocation().getPath();
         File pkgFile = new File(testDir, UUID.randomUUID().toString());
         FunctionCommon.downloadFromHttpUrl(jarHttpUrl, pkgFile);
diff --git a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v2/FunctionApiV2ResourceTest.java b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v2/FunctionApiV2ResourceTest.java
index 20988e0cb76466a4ab261d5ec7527e5f18119e08..9865111572a5f3270870c601f1301cb6bdb9db04 100644
--- a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v2/FunctionApiV2ResourceTest.java
+++ b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v2/FunctionApiV2ResourceTest.java
@@ -1432,7 +1432,7 @@ public class FunctionApiV2ResourceTest {
 
     @Test
     public void testDownloadFunctionHttpUrl() throws Exception {
-        String jarHttpUrl = "http://central.maven.org/maven2/org/apache/pulsar/pulsar-common/1.22.0-incubating/pulsar-common-1.22.0-incubating.jar";
+        String jarHttpUrl = "https://repo1.maven.org/maven2/org/apache/pulsar/pulsar-common/2.4.2/pulsar-common-2.4.2.jar";
         String testDir = FunctionApiV2ResourceTest.class.getProtectionDomain().getCodeSource().getLocation().getPath();
         FunctionsImplV2 function = new FunctionsImplV2(() -> mockedWorkerService);
         StreamingOutput streamOutput = (StreamingOutput) function.downloadFunction(jarHttpUrl, null).getEntity();
diff --git a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v3/FunctionApiV3ResourceTest.java b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v3/FunctionApiV3ResourceTest.java
index 5f90945983e7fa2c436b9ac60f5da70567770df7..b65d5402f7b35bb28ec6c9cb5e3e3c13e24859db 100644
--- a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v3/FunctionApiV3ResourceTest.java
+++ b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/rest/api/v3/FunctionApiV3ResourceTest.java
@@ -1468,7 +1468,7 @@ public class FunctionApiV3ResourceTest {
 
     @Test
     public void testDownloadFunctionHttpUrl() throws Exception {
-        String jarHttpUrl = "http://central.maven.org/maven2/org/apache/pulsar/pulsar-common/1.22.0-incubating/pulsar-common-1.22.0-incubating.jar";
+        String jarHttpUrl = "https://repo1.maven.org/maven2/org/apache/pulsar/pulsar-common/2.4.2/pulsar-common-2.4.2.jar";
         String testDir = FunctionApiV3ResourceTest.class.getProtectionDomain().getCodeSource().getLocation().getPath();
         WorkerService worker = mock(WorkerService.class);
         doReturn(true).when(worker).isInitialized();
diff --git a/site2/docs/io-kafka-source.md b/site2/docs/io-kafka-source.md
index 615b3728dac960ff1278b708a887b4a6e4393d1d..484cf9dcf686aec48558a8b4ec84d14769689c70 100644
--- a/site2/docs/io-kafka-source.md
+++ b/site2/docs/io-kafka-source.md
@@ -64,7 +64,7 @@ Here is an example of using the Kafka source connecter with the configuration fi
 1. Download a Kafka client and a Kafka connector.
 
     ```bash
-    $ wget http://central.maven.org/maven2/org/apache/kafka/kafka-clients/0.10.2.1/kafka-clients-0.10.2.1.jar
+    $ wget https://repo1.maven.org/maven2/org/apache/kafka/kafka-clients/0.10.2.1/kafka-clients-0.10.2.1.jar
 
     $ wget https://archive.apache.org/dist/pulsar/pulsar-2.4.0/connectors/pulsar-io-kafka-2.4.0.nar
     ```