diff --git a/pom.xml b/pom.xml
index a6f03ecdf..7071f3a0e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -284,13 +284,23 @@
           <artifactId>maven-site-plugin</artifactId>
           <version>3.12.1</version>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.4.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>3.1.3</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-enforcer-plugin</artifactId>
-        <version>3.1.0</version><executions>
+        <version>3.5.0</version><executions>
         <execution>
           <id>enforce-maven</id>
           <goals>
@@ -493,7 +503,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>3.0.1</version>
+            <version>3.2.7</version>
             <executions>
               <execution>
                 <id>sign-artifacts</id>
diff --git a/samples/dailymotion-cmdline-sample/pom.xml b/samples/dailymotion-cmdline-sample/pom.xml
index e1bb58304..d1ce5b83d 100644
--- a/samples/dailymotion-cmdline-sample/pom.xml
+++ b/samples/dailymotion-cmdline-sample/pom.xml
@@ -73,14 +73,6 @@
           <skip>true</skip>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.sonatype.plugins</groupId>
-        <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.13</version>
-        <configuration>
-          <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
-        </configuration>
-      </plugin>
     </plugins>
     <finalName>${project.artifactId}-${project.version}</finalName>
   </build>
@@ -109,4 +101,31 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
+  <profiles>
+    <profile>
+      <!-- By default, we release artifacts to Sonatype, which requires
+          nexus-staging-maven-plugin. -->
+      <id>release-sonatype</id>
+      <activation>
+        <property>
+          <!-- Only when we use the release-gcp-artifact-registry profile,
+          which comes with artifact-registry-url property, this profile is
+          turned off. -->
+          <name>!artifact-registry-url</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.13</version>
+            <configuration>
+              <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>
diff --git a/samples/keycloak-pkce-cmdline-sample/pom.xml b/samples/keycloak-pkce-cmdline-sample/pom.xml
index 983ca6229..ee5b5e235 100644
--- a/samples/keycloak-pkce-cmdline-sample/pom.xml
+++ b/samples/keycloak-pkce-cmdline-sample/pom.xml
@@ -73,14 +73,6 @@
           <skip>true</skip>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.sonatype.plugins</groupId>
-        <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.13</version>
-        <configuration>
-          <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
-        </configuration>
-      </plugin>
     </plugins>
     <finalName>${project.artifactId}-${project.version}</finalName>
   </build>
@@ -109,4 +101,31 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
+  <profiles>
+    <profile>
+      <!-- By default, we release artifacts to Sonatype, which requires
+          nexus-staging-maven-plugin. -->
+      <id>release-sonatype</id>
+      <activation>
+        <property>
+          <!-- Only when we use the release-gcp-artifact-registry profile,
+          which comes with artifact-registry-url property, this profile is
+          turned off. -->
+          <name>!artifact-registry-url</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.13</version>
+            <configuration>
+              <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>
diff --git a/samples/pom.xml b/samples/pom.xml
index 820a81719..92dc53626 100644
--- a/samples/pom.xml
+++ b/samples/pom.xml
@@ -43,14 +43,33 @@
           <skip>true</skip>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.sonatype.plugins</groupId>
-        <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.13</version>
-        <configuration>
-          <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
-        </configuration>
-      </plugin>
     </plugins>
   </build>
+  <profiles>
+    <profile>
+      <!-- By default, we release artifacts to Sonatype, which requires
+          nexus-staging-maven-plugin. -->
+      <id>release-sonatype</id>
+      <activation>
+        <property>
+          <!-- Only when we use the release-gcp-artifact-registry profile,
+          which comes with artifact-registry-url property, this profile is
+          turned off. -->
+          <name>!artifact-registry-url</name>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.13</version>
+            <configuration>
+              <skipNexusStagingDeployMojo>true</skipNexusStagingDeployMojo>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>