diff --git a/terasoluna-gfw-parent/pom.xml b/terasoluna-gfw-parent/pom.xml
index f256fdac7..dd6122189 100644
--- a/terasoluna-gfw-parent/pom.xml
+++ b/terasoluna-gfw-parent/pom.xml
@@ -511,18 +511,18 @@
   </dependencyManagement>
   <properties>
     <!-- == Maven Plugin Versions == -->
-    <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
-    <maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>
-    <maven-resources-plugin.version>3.2.0</maven-resources-plugin.version>
-    <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
-    <maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
-    <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
-    <maven-assembly-plugin.version>3.3.0</maven-assembly-plugin.version>
-    <maven-clean-plugin.version>3.1.0</maven-clean-plugin.version>
-    <maven-install-plugin.version>3.0.0-M1</maven-install-plugin.version>
-    <maven-deploy-plugin.version>3.0.0-M1</maven-deploy-plugin.version>
-    <maven-site-plugin.version>3.9.1</maven-site-plugin.version>
-    <cargo-maven2-plugin.version>1.8.4</cargo-maven2-plugin.version>
+    <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+    <maven-dependency-plugin.version>2.9</maven-dependency-plugin.version>
+    <maven-resources-plugin.version>2.6</maven-resources-plugin.version>
+    <maven-source-plugin.version>2.4</maven-source-plugin.version>
+    <maven-javadoc-plugin.version>2.10.1</maven-javadoc-plugin.version>
+    <maven-jar-plugin.version>2.5</maven-jar-plugin.version>
+    <maven-assembly-plugin.version>2.5.1</maven-assembly-plugin.version>
+    <maven-clean-plugin.version>2.5</maven-clean-plugin.version>
+    <maven-install-plugin.version>2.5.2</maven-install-plugin.version>
+    <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
+    <maven-site-plugin.version>3.4</maven-site-plugin.version>
+    <cargo-maven2-plugin.version>1.6.2</cargo-maven2-plugin.version>
     <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
     <nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
     <!-- == Dependency Versions == -->