diff --git a/pom.xml b/pom.xml
index 13434625b..2251e9b83 100644
--- a/pom.xml
+++ b/pom.xml
@@ -404,6 +404,7 @@
         <commons-lang.version>2.6</commons-lang.version>
         <commons-logging.version>1.2</commons-logging.version>
         <commons-beanutils.version>1.9.4</commons-beanutils.version>
+        <maven-assembly-plugin.version>3.2.0</maven-assembly-plugin.version>
         <maven-jar-plugin.version>2.6</maven-jar-plugin.version>
         <maven-surefire.version>2.18.1</maven-surefire.version>
         <maven-shade-plugin.version>2.4.1</maven-shade-plugin.version>
@@ -909,7 +910,7 @@
                 <enabled>false</enabled>
             </snapshots>
             <id>central</id>
-            <url>http://repo1.maven.org/maven2/</url>
+            <url>https://repo1.maven.org/maven2/</url>
         </repository>
         <repository>
             <id>clojars</id>
@@ -937,6 +938,11 @@
     <build>
         <pluginManagement>
             <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-assembly-plugin</artifactId>
+                    <version>${maven-assembly-plugin.version}</version>
+                </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-release-plugin</artifactId>