diff --git a/pom.xml b/pom.xml
index 3cd5f922..2236f320 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,6 @@
 		<spring-cloud-commons.version>3.0.0-SNAPSHOT</spring-cloud-commons.version>
 
 		<!-- Plugin versions -->
-		<maven-compiler-plugin.version>3.6.1</maven-compiler-plugin.version>
 		<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
 		<!-- Sonar -->
 		<surefire.plugin.version>2.19.1</surefire.plugin.version>
@@ -67,7 +66,6 @@
 			</plugin>
 			<plugin>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
 				<configuration>
 					<source>1.8</source>
 					<target>1.8</target>
diff --git a/spring-cloud-openfeign-core/pom.xml b/spring-cloud-openfeign-core/pom.xml
index 3c46f0f8..1480859f 100644
--- a/spring-cloud-openfeign-core/pom.xml
+++ b/spring-cloud-openfeign-core/pom.xml
@@ -168,13 +168,13 @@
 		<dependency>
 			<groupId>com.google.protobuf</groupId>
 			<artifactId>protobuf-java</artifactId>
-			<version>3.4.0</version>
+			<version>3.13.0</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>io.vavr</groupId>
 			<artifactId>vavr</artifactId>
-			<version>0.10.0</version>
+			<version>0.10.3</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>