diff --git a/ci/appveyor.yml b/ci/appveyor.yml
index bcd9c43ca2..ff79ee139c 100644
--- a/ci/appveyor.yml
+++ b/ci/appveyor.yml
@@ -1,4 +1,4 @@
-version: 2.0-dev{build}
+version: 2.1-dev{build}
 
 # fetch repository as zip archive
 shallow_clone: true
diff --git a/src/silx/_version.py b/src/silx/_version.py
index 068632002b..c8dca4f85d 100644
--- a/src/silx/_version.py
+++ b/src/silx/_version.py
@@ -68,7 +68,7 @@
 PRERELEASE_NORMALIZED_NAME = {"dev": "a", "alpha": "a", "beta": "b", "candidate": "rc"}
 
 MAJOR = 2
-MINOR = 0
+MINOR = 1
 MICRO = 0
 RELEV = "dev"  # <16
 SERIAL = 0  # <16