diff --git a/pom.xml b/pom.xml
index 4545974..83bc1d0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1174,8 +1174,8 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.8.1</version>
 				<configuration>
-					<source>13</source>
-					<target>13</target>
+					<source>11</source>
+					<target>11</target>
 				</configuration>
 			</plugin>
 			<plugin>