Upgrade to Apache Felix SCR 2.1.20
diff --git a/winegrower-examples/jaxrs-whiteboard/pom.xml b/winegrower-examples/jaxrs-whiteboard/pom.xml
index c01ee11..7e43bd5 100644
--- a/winegrower-examples/jaxrs-whiteboard/pom.xml
+++ b/winegrower-examples/jaxrs-whiteboard/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>org.apache.felix</groupId>
       <artifactId>org.apache.felix.scr</artifactId>
-      <version>2.1.16</version>
+      <version>2.1.20</version>
     </dependency>
   </dependencies>