diff --git a/doc/scapy/conf.py b/doc/scapy/conf.py
index 9609863ae0b517789efca2c7f6737f9a54473f6a..1fc73b92569d58d856cc53aab06c79fb24cb7023 100644
--- a/doc/scapy/conf.py
+++ b/doc/scapy/conf.py
@@ -44,7 +44,7 @@ copyright = '2008, 2009 Philippe Biondi and the Scapy community'
 # The short X.Y version.
 version = '2.1.1'
 # The full version, including alpha/beta/rc tags.
-release = '2.1.1'
+release = '2.1.1-dev'
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
diff --git a/scapy/config.py b/scapy/config.py
index 7d7ee61b66be740ac2888e393a30b0de94eac766..394221db9976cfd4325e6e1211a67c04548d5662 100644
--- a/scapy/config.py
+++ b/scapy/config.py
@@ -312,7 +312,7 @@ noenum    : holds list of enum fields for which conversion to string should NOT
 AS_resolver: choose the AS resolver class to use
 extensions_paths: path or list of paths where extensions are to be looked for
 """
-    version = "2.1.1"
+    version = "2.1.1-dev"
     session = ""
     interactive = False
     interactive_shell = ""
diff --git a/setup.py b/setup.py
index d43355ef9d44564c6237fa0dc17e4405389e8984..92a0c53cfeb4266833d3da82f727ea1dd1c683bf 100755
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@ if os.name == "nt":
 
 setup(
     name = 'scapy',
-    version = '2.1.1',
+    version = '2.1.1-dev',
     packages=['scapy','scapy/arch', 'scapy/arch/windows', 'scapy/layers','scapy/asn1','scapy/tools','scapy/modules', 'scapy/crypto'],
     scripts = SCRIPTS,
     data_files = [('share/man/man1', ["doc/scapy.1.gz"])],