diff --git a/dl4j-deeplearning-iris/pom.xml b/dl4j-deeplearning-iris/pom.xml
index 9f6f188..f14d7bb 100644
--- a/dl4j-deeplearning-iris/pom.xml
+++ b/dl4j-deeplearning-iris/pom.xml
@@ -10,7 +10,7 @@
 	<repositories>
 		<repository>
 			<id>confluent</id>
-			<url>http://packages.confluent.io/maven/</url>
+			<url>https://packages.confluent.io/maven/</url>
 		</repository>
 	</repositories>
 
diff --git a/h2o-gbm/pom.xml b/h2o-gbm/pom.xml
index 98e329d..e9c979f 100644
--- a/h2o-gbm/pom.xml
+++ b/h2o-gbm/pom.xml
@@ -10,7 +10,7 @@
 	<repositories>
 		<repository>
 			<id>confluent</id>
-			<url>http://packages.confluent.io/maven/</url>
+			<url>https://packages.confluent.io/maven/</url>
 		</repository>
 	</repositories>
 
diff --git a/tensorflow-image-recognition/pom.xml b/tensorflow-image-recognition/pom.xml
index 63c460b..09eaad1 100644
--- a/tensorflow-image-recognition/pom.xml
+++ b/tensorflow-image-recognition/pom.xml
@@ -10,7 +10,7 @@
 	<repositories>
 		<repository>
 			<id>confluent</id>
-			<url>http://packages.confluent.io/maven/</url>
+			<url>https://packages.confluent.io/maven/</url>
 		</repository>
 	</repositories>
 
diff --git a/tensorflow-keras/pom.xml b/tensorflow-keras/pom.xml
index d105c56..23fd436 100644
--- a/tensorflow-keras/pom.xml
+++ b/tensorflow-keras/pom.xml
@@ -10,7 +10,7 @@
 	<repositories>
 		<repository>
 			<id>confluent</id>
-			<url>http://packages.confluent.io/maven/</url>
+			<url>https://packages.confluent.io/maven/</url>
 		</repository>
 	</repositories>