diff --git a/core-groovy-2/pom.xml b/core-groovy-2/pom.xml
index a01560781b..b1bfa19771 100644
--- a/core-groovy-2/pom.xml
+++ b/core-groovy-2/pom.xml
@@ -159,7 +159,7 @@
     <repositories>
         <repository>
             <id>central</id>
-            <url>http://jcenter.bintray.com</url>
+            <url>https://jcenter.bintray.com</url>
         </repository>
     </repositories>
 
diff --git a/core-java-modules/core-java-9-improvements/pom.xml b/core-java-modules/core-java-9-improvements/pom.xml
index 5cc4fce7a9..bf68cfbd47 100644
--- a/core-java-modules/core-java-9-improvements/pom.xml
+++ b/core-java-modules/core-java-9-improvements/pom.xml
@@ -64,7 +64,7 @@
     <pluginRepositories>
         <pluginRepository>
             <id>apache.snapshots</id>
-            <url>http://repository.apache.org/snapshots/</url>
+            <url>https://repository.apache.org/snapshots/</url>
         </pluginRepository>
     </pluginRepositories>
 
diff --git a/core-java-modules/core-java-9-new-features/pom.xml b/core-java-modules/core-java-9-new-features/pom.xml
index 4edf6e4fc5..2f07a665a4 100644
--- a/core-java-modules/core-java-9-new-features/pom.xml
+++ b/core-java-modules/core-java-9-new-features/pom.xml
@@ -149,7 +149,7 @@
     <pluginRepositories>
         <pluginRepository>
             <id>apache.snapshots</id>
-            <url>http://repository.apache.org/snapshots/</url>
+            <url>https://repository.apache.org/snapshots/</url>
         </pluginRepository>
     </pluginRepositories>
 
diff --git a/core-java-modules/core-java-9/pom.xml b/core-java-modules/core-java-9/pom.xml
index b6dff0a3a4..0669d6f597 100644
--- a/core-java-modules/core-java-9/pom.xml
+++ b/core-java-modules/core-java-9/pom.xml
@@ -64,7 +64,7 @@
     <pluginRepositories>
         <pluginRepository>
             <id>apache.snapshots</id>
-            <url>http://repository.apache.org/snapshots/</url>
+            <url>https://repository.apache.org/snapshots/</url>
         </pluginRepository>
     </pluginRepositories>
 
diff --git a/muleesb/pom.xml b/muleesb/pom.xml
index e7c7e50cbe..f6cfa7d5d1 100644
--- a/muleesb/pom.xml
+++ b/muleesb/pom.xml
@@ -187,13 +187,13 @@
         <repository>
             <id>Central</id>
             <name>Central</name>
-            <url>http://repo1.maven.org/maven2/</url>
+            <url>https://repo1.maven.org/maven2/</url>
             <layout>default</layout>
         </repository>
         <repository>
             <id>mulesoft-releases</id>
             <name>MuleSoft Releases Repository</name>
-            <url>http://repository.mulesoft.org/releases/</url>
+            <url>https://repository.mulesoft.org/releases/</url>
             <layout>default</layout>
         </repository>
     </repositories>
@@ -203,7 +203,7 @@
             <id>mulesoft-release</id>
             <name>mulesoft release repository</name>
             <layout>default</layout>
-            <url>http://repository.mulesoft.org/releases/</url>
+            <url>https://repository.mulesoft.org/releases/</url>
             <snapshots>
                 <enabled>false</enabled>
             </snapshots>
diff --git a/parent-kotlin/pom.xml b/parent-kotlin/pom.xml
index 52a753439c..947dd20483 100644
--- a/parent-kotlin/pom.xml
+++ b/parent-kotlin/pom.xml
@@ -26,7 +26,7 @@
         </repository>
         <repository>
             <id>kotlin-eap</id>
-            <url>http://dl.bintray.com/kotlin/kotlin-eap</url>
+            <url>https://dl.bintray.com/kotlin/kotlin-eap</url>
         </repository>
         <repository>
             <id>spring-milestone</id>
@@ -38,7 +38,7 @@
     <pluginRepositories>
         <pluginRepository>
             <id>kotlin-eap</id>
-            <url>http://dl.bintray.com/kotlin/kotlin-eap</url>
+            <url>https://dl.bintray.com/kotlin/kotlin-eap</url>
         </pluginRepository>
     </pluginRepositories>
 
diff --git a/vaadin/pom.xml b/vaadin/pom.xml
index 9de1bec6e2..f8f709cef7 100644
--- a/vaadin/pom.xml
+++ b/vaadin/pom.xml
@@ -126,7 +126,7 @@
     <repositories>
         <repository>
             <id>vaadin-addons</id>
-            <url>http://maven.vaadin.com/vaadin-addons</url>
+            <url>https://maven.vaadin.com/vaadin-addons</url>
         </repository>
     </repositories>
 
@@ -141,7 +141,7 @@
             <repositories>
                 <repository>
                     <id>vaadin-prereleases</id>
-                    <url>http://maven.vaadin.com/vaadin-prereleases</url>
+                    <url>https://maven.vaadin.com/vaadin-prereleases</url>
                 </repository>
                 <repository>
                     <id>vaadin-snapshots</id>
@@ -157,7 +157,7 @@
             <pluginRepositories>
                 <pluginRepository>
                     <id>vaadin-prereleases</id>
-                    <url>http://maven.vaadin.com/vaadin-prereleases</url>
+                    <url>https://maven.vaadin.com/vaadin-prereleases</url>
                 </pluginRepository>
                 <pluginRepository>
                     <id>vaadin-snapshots</id>