diff --git a/gatb-core b/gatb-core
index db4e7da..4dffb1a 160000
--- a/gatb-core
+++ b/gatb-core
@@ -1 +1 @@
-Subproject commit db4e7da969eec8d432a61d1b09d7ab8ac149f468
+Subproject commit 4dffb1a995583aafefa1a1d576f18baea040a71e