diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/ClientConnectionDAO.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/ClientConnectionDAO.java
index 6f795848..6d80f58b 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/ClientConnectionDAO.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/ClientConnectionDAO.java
@@ -89,6 +89,8 @@ public interface ClientConnectionDAO extends
     Result<ClientConnection> createNew(ClientConnection data);
 
     @Override
+    // TODO check if it is possible to remove with examId
+    @CacheEvict(cacheNames = CONNECTION_TOKENS_CACHE, allEntries = true)
     Result<ClientConnection> save(ClientConnection data);
 
     @CacheEvict(