diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21677751eef67e5e6218c96247a7b36e3b822679..2c1023584c455e672db4c91da4776f733bd4525d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,6 @@
 Changelog is kept at [GitHub](https://github.com/Dronehub/minijson/releases),
 here's only the changelog for the version in development
 
-# v1.4
-
-* improved encoding of small non-all-keys-are-strings dictionaries
+# v1.5
 
+* _TBA_
diff --git a/setup.py b/setup.py
index 0ae1e6569203f857463b6bd7ca429f1c307d7cae..b02e9a8945702b4c5c3eb9fd83a5abecf2817f52 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ if 'DEBUG' in os.environ:
     directives['embedsignature'] = True
 
 
-setup(version='1.4',
+setup(version='1.5a1',
       packages=find_packages(include=['minijson', 'minijson.*']),
       ext_modules=build([Multibuild('minijson', find_pyx('minijson'),
                                     dont_snakehouse=dont_snakehouse), ],