diff --git a/pom.xml b/pom.xml
index bd7524050..25c400ea7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -177,14 +177,6 @@
 				<enabled>true</enabled>
 			</snapshots>
 		</repository>
-		<repository>
-			<id>jcentral</id>
-			<url>http://jcenter.bintray.com</url>
-		</repository>
-		<repository>
-			<id>sejda</id>
-			<url>https://dl.bintray.com/sejdapdf/maven/</url>
-		</repository>
 	</repositories>
 
 	<pluginRepositories>
@@ -247,7 +239,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-assembly-plugin</artifactId>
-					<version>3.1.0</version>
+					<version>3.1.1</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -257,7 +249,7 @@
 				<plugin>
 					<groupId>org.codehaus.mojo</groupId>
 					<artifactId>exec-maven-plugin</artifactId>
-					<version>1.5.0</version>
+					<version>1.6.0</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>