diff --git a/pom.xml b/pom.xml
index 7820a518f..38d428b62 100644
--- a/pom.xml
+++ b/pom.xml
@@ -282,8 +282,8 @@
           <artifactId>maven-compiler-plugin</artifactId>
           <version>3.13.0</version>
           <configuration>
-            <source>1.8</source>
-            <target>1.8</target>
+            <source>1.7</source>
+            <target>1.7</target>
           </configuration>
         </plugin>
 
@@ -399,7 +399,7 @@
         <artifactId>maven-javadoc-plugin</artifactId>
         <configuration>
           <doclint>none</doclint>
-          <source>8</source>
+          <source>7</source>
         </configuration>
         <executions>
           <execution>