diff --git a/CHANGELOG.md b/CHANGELOG.md
index d5e1b9e1aace7453b16afd13546fd834129e428a..b73008e56a26b9f4a87bad4ca0388f3d780e6b03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,4 @@
 Changelog is kept at [GitHub](https://github.com/Dronehub/minijson/releases),
 here's only the changelog for the version in development
 
-# v1.2
-
-* removed the limit for string length and list and object size
+# v1.3
diff --git a/setup.py b/setup.py
index 682be46413c344a93413830f14a86808e8ad7540..ed1ad9c549406606bbe9ac4d4d7e92f019e70723 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ if 'DEBUG' in os.environ:
     directives['embedsignature'] = True
 
 
-setup(version='1.2',
+setup(version='1.3a1',
       packages=find_packages(include=['minijson', 'minijson.*']),
       ext_modules=build([Multibuild('minijson', find_pyx('minijson'),
                                     dont_snakehouse=dont_snakehouse), ],