diff --git a/.classpath b/.classpath
index 980f91d..7d2ffae 100644
--- a/.classpath
+++ b/.classpath
@@ -17,13 +17,11 @@
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 			<attribute name="org.eclipse.jst.component.nondependency" value=""/>
-			<attribute name="module" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
 		<attributes>
-			<attribute name="owner.project.facets" value="java"/>
-			<attribute name="module" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 73534d0..6fe4a00 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -107,5 +107,5 @@ org.eclipse.jdt.core.compiler.problem.unusedPrivateMember=warning
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=warning
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.release=disabled
 org.eclipse.jdt.core.compiler.source=11
diff --git a/pom.xml b/pom.xml
index 5202422..0add6eb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,6 +23,15 @@
 				<directory>src/main/resources</directory>
 			</resource>
 		</resources>
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.8.1</version>
+				</plugin>
+			</plugins>
+		</pluginManagement>
 		<plugins>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>