diff --git a/e2e-test/gradle/wrapper/gradle-wrapper.properties b/e2e-test/gradle/wrapper/gradle-wrapper.properties
index c37a0ba..14dd3ef 100644
--- a/e2e-test/gradle/wrapper/gradle-wrapper.properties
+++ b/e2e-test/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-2.11-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip
diff --git a/spring-boot-restful-service/gradle/wrapper/gradle-wrapper.properties b/spring-boot-restful-service/gradle/wrapper/gradle-wrapper.properties
index 737d383..62a6f1e 100644
--- a/spring-boot-restful-service/gradle/wrapper/gradle-wrapper.properties
+++ b/spring-boot-restful-service/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-2.11-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip
diff --git a/spring-boot-webapp/gradle/wrapper/gradle-wrapper.properties b/spring-boot-webapp/gradle/wrapper/gradle-wrapper.properties
index c37a0ba..14dd3ef 100644
--- a/spring-boot-webapp/gradle/wrapper/gradle-wrapper.properties
+++ b/spring-boot-webapp/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-2.11-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip