diff --git a/main/pom.xml b/main/pom.xml
index 4b7a20f65..92665ea2e 100644
--- a/main/pom.xml
+++ b/main/pom.xml
@@ -273,7 +273,7 @@
     <dependency>
       <groupId>oauth.signpost</groupId>
       <artifactId>signpost-core</artifactId>
-      <version>2.0.0</version>
+      <version>2.1.1</version>
     </dependency>
     <dependency>
       <groupId>oauth.signpost</groupId>