diff --git a/airline/build.gradle b/airline/build.gradle
index 5736641..c7d8373 100644
--- a/airline/build.gradle
+++ b/airline/build.gradle
@@ -4,7 +4,7 @@ subprojects {
 	apply plugin: 'idea'
 
     repositories {
-		maven { url 'http://repo.spring.io/libs-release' }
+		maven { url 'https://repo.spring.io/libs-release' }
     }
 
     dependencies {
diff --git a/airline/client/axis1/build.gradle b/airline/client/axis1/build.gradle
index 60715cc..f11184d 100644
--- a/airline/client/axis1/build.gradle
+++ b/airline/client/axis1/build.gradle
@@ -21,11 +21,11 @@ task axis {
 			mkdir(dir: classesDir)
 
 			axis(output: sourcesDir, url: wsdl) {
-				mapping(namespace: "http://www.springframework.org/spring-ws/samples/airline/definitions", 
+				mapping(namespace: "https://www.springframework.org/spring-ws/samples/airline/definitions", 
 					package: "org.springframework.ws.samples.airline.client.axis1")
-				mapping(namespace: "http://www.springframework.org/spring-ws/samples/airline/schemas/messages", 
+				mapping(namespace: "https://www.springframework.org/spring-ws/samples/airline/schemas/messages", 
 					package: "org.springframework.ws.samples.airline.client.axis1")
-				mapping(namespace: "http://www.springframework.org/spring-ws/samples/airline/schemas/types", 
+				mapping(namespace: "https://www.springframework.org/spring-ws/samples/airline/schemas/types", 
 					package: "org.springframework.ws.samples.airline.client.axis1")
 			}
 
diff --git a/echo/build.gradle b/echo/build.gradle
index 5e63150..c90a772 100644
--- a/echo/build.gradle
+++ b/echo/build.gradle
@@ -6,7 +6,7 @@ subprojects {
 	apply plugin: 'idea'
 
     repositories {
-		maven { url 'http://repo.spring.io/libs-release' }
+		maven { url 'https://repo.spring.io/libs-release' }
     }
 
     dependencies {
diff --git a/echo/server/build.gradle b/echo/server/build.gradle
index 544ff6a..43f6e53 100644
--- a/echo/server/build.gradle
+++ b/echo/server/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 	repositories {
-      maven { url 'http://repo.springsource.org/plugins-release' }
+      maven { url 'https://repo.springsource.org/plugins-release' }
 	}
 
 	dependencies {
diff --git a/mtom/build.gradle b/mtom/build.gradle
index 4fc1d8b..37c9698 100644
--- a/mtom/build.gradle
+++ b/mtom/build.gradle
@@ -8,7 +8,7 @@ subprojects {
 	apply plugin: 'idea'
 
     repositories {
-		maven { url 'http://repo.spring.io/libs-release' }
+		maven { url 'https://repo.spring.io/libs-release' }
     }
 
     dependencies {
diff --git a/stockquote/build.gradle b/stockquote/build.gradle
index 5d3dcbe..33585ee 100644
--- a/stockquote/build.gradle
+++ b/stockquote/build.gradle
@@ -7,7 +7,7 @@ subprojects {
 	apply plugin: 'idea'
 
     repositories {
-		maven { url 'http://repo.spring.io/libs-release' }
+		maven { url 'https://repo.spring.io/libs-release' }
     }
 
     dependencies {
diff --git a/tutorial/build.gradle b/tutorial/build.gradle
index a6c7cd1..7055368 100644
--- a/tutorial/build.gradle
+++ b/tutorial/build.gradle
@@ -38,8 +38,8 @@ dependencies {
 }
 
 repositories {
-	maven { url 'http://repo.spring.io/libs-release' }
-    maven { url 'http://repo.spring.io/libs-snapshot' }
+	maven { url 'https://repo.spring.io/libs-release' }
+    maven { url 'https://repo.spring.io/libs-snapshot' }
 }
 
 task wrapper(type: Wrapper) {
diff --git a/weather/build.gradle b/weather/build.gradle
index 2b51fe2..ea0379b 100644
--- a/weather/build.gradle
+++ b/weather/build.gradle
@@ -10,7 +10,7 @@ apply plugin: 'eclipse'
 apply plugin: 'idea'
 
 repositories {
-    maven { url 'http://repo.spring.io/libs-release' }
+    maven { url 'https://repo.spring.io/libs-release' }
 }
 
 task genJaxb {