diff --git a/ci/appveyor/sakia.iss b/ci/appveyor/sakia.iss
index 0b3af71fdb17dfcdab0d3a07a19fda8c1d5c82f6..94ce2e7d6ceba3bfa915441e4c2d6e5abc573005 100644
--- a/ci/appveyor/sakia.iss
+++ b/ci/appveyor/sakia.iss
@@ -15,7 +15,7 @@
 #error "Unable to find MyAppExe"
 #endif
 
-#define MyAppVerStr "0.20.0dev12"
+#define MyAppVerStr "0.20.0dev13"
 
 [Setup]
 AppName={#MyAppName}
diff --git a/ci/travis/debian/DEBIAN/control b/ci/travis/debian/DEBIAN/control
index 5993319218e7ba4f2f610049ae4d12857e5869af..f3cb9858810196dd8c5fa9c07eee488b10929874 100644
--- a/ci/travis/debian/DEBIAN/control
+++ b/ci/travis/debian/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: sakia
-Version: 0.20.0dev12
+Version: 0.20.0dev13
 Section: misc
 Priority: optional
 Architecture: all
diff --git a/src/sakia/__init__.py b/src/sakia/__init__.py
index 97de97e7456c51fa643688a58057f012b8083426..89ddfbb5b8d68e5a583f7656f5d5b329e0e1d5e9 100644
--- a/src/sakia/__init__.py
+++ b/src/sakia/__init__.py
@@ -1,2 +1,2 @@
-__version_info__ = ('0', '20', '0dev12')
+__version_info__ = ('0', '20', '0dev13')
 __version__ = '.'.join(__version_info__)