diff --git a/build.gradle b/build.gradle
index 1492041f..0cd28955 100644
--- a/build.gradle
+++ b/build.gradle
@@ -67,8 +67,8 @@ configure(subprojects.findAll {
 	}
 
 	subproject.ext {
-		springVersion         = "5.1.3.RELEASE"
-		springSecurityVersion = "5.1.2.RELEASE"
+		springVersion         = "5.1.7.RELEASE"
+		springSecurityVersion = "5.1.5.RELEASE"
 		servletVersion        = "3.1.0"
 		hibernate5Version     = "5.2.17.Final"
 		tiles3Version         = "3.0.8"
diff --git a/spring-webflow/src/main/java/org/springframework/webflow/engine/model/builder/xml/DefaultDocumentLoader.java b/spring-webflow/src/main/java/org/springframework/webflow/engine/model/builder/xml/DefaultDocumentLoader.java
index 45379dfd..488e15c9 100644
--- a/spring-webflow/src/main/java/org/springframework/webflow/engine/model/builder/xml/DefaultDocumentLoader.java
+++ b/spring-webflow/src/main/java/org/springframework/webflow/engine/model/builder/xml/DefaultDocumentLoader.java
@@ -46,7 +46,7 @@ public class DefaultDocumentLoader implements DocumentLoader {
 	/**
 	 * JAXP attribute used to configure the schema language for validation.
 	 */
-	private static final String SCHEMA_LANGUAGE_ATTRIBUTE = "https://java.sun.com/xml/jaxp/properties/schemaLanguage";
+	private static final String SCHEMA_LANGUAGE_ATTRIBUTE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
 
 	/**
 	 * JAXP attribute value indicating the XSD schema language.