diff --git a/VERSION b/VERSION
index 7ec1d6d..3e3c2f1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.0
+2.1.1
diff --git a/python/adapters/ponsim_olt/VERSION b/python/adapters/ponsim_olt/VERSION
index c10edc3..3e3c2f1 100644
--- a/python/adapters/ponsim_olt/VERSION
+++ b/python/adapters/ponsim_olt/VERSION
@@ -1 +1 @@
-2.1.0-dev
+2.1.1
diff --git a/python/adapters/ponsim_onu/VERSION b/python/adapters/ponsim_onu/VERSION
index c10edc3..3e3c2f1 100644
--- a/python/adapters/ponsim_onu/VERSION
+++ b/python/adapters/ponsim_onu/VERSION
@@ -1 +1 @@
-2.1.0-dev
+2.1.1