diff --git a/core/src/test/resources/application-context.xml b/core/src/test/resources/application-context.xml
index fa672a7..9e7458d 100644
--- a/core/src/test/resources/application-context.xml
+++ b/core/src/test/resources/application-context.xml
@@ -2,8 +2,8 @@
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:plugin="http://www.springframework.org/schema/plugin"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-		http://www.springframework.org/schema/plugin http://www.springframework.org/schema/plugin/spring-plugin.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/plugin https://www.springframework.org/schema/plugin/spring-plugin.xsd">
 
 	<plugin:list id="foo" class="org.springframework.plugin.core.SamplePlugin" />