diff --git a/2.x/chapter2-5/pom.xml b/2.x/chapter2-5/pom.xml
index 2b81ca3b..cc7396c9 100644
--- a/2.x/chapter2-5/pom.xml
+++ b/2.x/chapter2-5/pom.xml
@@ -95,7 +95,7 @@
 			</snapshots>
 			<id>jcenter-releases</id>
 			<name>jcenter</name>
-			<url>http://jcenter.bintray.com</url>
+			<url>https://jcenter.bintray.com</url>
 		</repository>
 	</repositories>
 
diff --git a/2.x/chapter2-7/pom.xml b/2.x/chapter2-7/pom.xml
index 285eeeea..410fafb0 100644
--- a/2.x/chapter2-7/pom.xml
+++ b/2.x/chapter2-7/pom.xml
@@ -61,7 +61,7 @@
 			</snapshots>
 			<id>jcenter-releases</id>
 			<name>jcenter</name>
-			<url>http://jcenter.bintray.com</url>
+			<url>https://jcenter.bintray.com</url>
 		</repository>
 	</repositories>