diff --git a/accessors-smart/pom.xml b/accessors-smart/pom.xml
index 37550e84..ddd249db 100644
--- a/accessors-smart/pom.xml
+++ b/accessors-smart/pom.xml
@@ -33,8 +33,8 @@
     </licenses>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
     <dependencies>
 	<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
@@ -199,8 +199,8 @@
                 <version>3.3</version>
                 <configuration>
                     <encoding>UTF-8</encoding>
-                    <source>11</source>
-                    <target>11</target>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
                     <excludes>
                         <exclude>**/.svn/*</exclude>
                         <exclude>**/.svn</exclude>
diff --git a/json-smart-action/pom.xml b/json-smart-action/pom.xml
index afa97b14..1b882d82 100644
--- a/json-smart-action/pom.xml
+++ b/json-smart-action/pom.xml
@@ -43,8 +43,8 @@
     </licenses>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
     <dependencies>
         <dependency>
@@ -190,8 +190,8 @@
                 <version>3.3</version>
                 <configuration>
                     <encoding>UTF-8</encoding>
-                    <source>11</source>
-                    <target>11</target>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
                     <excludes>
                         <exclude>**/.svn/*</exclude>
                         <exclude>**/.svn</exclude>
@@ -256,4 +256,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
\ No newline at end of file
+</project>
diff --git a/json-smart/pom.xml b/json-smart/pom.xml
index f582411e..63f968dd 100644
--- a/json-smart/pom.xml
+++ b/json-smart/pom.xml
@@ -44,8 +44,8 @@
 	</licenses>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<maven.compiler.source>11</maven.compiler.source>
-		<maven.compiler.target>11</maven.compiler.target>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -192,8 +192,8 @@
 				<version>3.3</version>
 				<configuration>
 					<encoding>UTF-8</encoding>
-					<source>11</source>
-					<target>11</target>
+					<source>${maven.compiler.source}</source>
+					<target>${maven.compiler.target}</target>
 					<excludes>
 						<exclude>**/.svn/*</exclude>
 						<exclude>**/.svn</exclude>
@@ -261,4 +261,4 @@
 			</plugin>
 		</plugins>
 	</build>
-</project>
\ No newline at end of file
+</project>
diff --git a/pom.xml b/pom.xml
index c096133c..7b3f70af 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,8 +36,8 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<maven.compiler.source>11</maven.compiler.source>
-		<maven.compiler.target>11</maven.compiler.target>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
 	</properties>
 
 	<build>
@@ -62,8 +62,8 @@
 				<version>3.3</version>
 				<configuration>
 					<encoding>UTF-8</encoding>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>${maven.compiler.source}</source>
+					<target>${maven.compiler.target}</target>
 					<excludes>
 						<exclude>**/.svn/*</exclude>
 						<exclude>**/.svn</exclude>