diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e943f66a..601cdab21 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 #### New Features
 
-- Upgrade Web API specification to OpenAPI v3.
+- Upgrade OpenAPI specification of the API to v3 from Swagger v2.
 - Continuously validate OpenAPI specification.
 
 #### Breaking changes
diff --git a/setup.py b/setup.py
index a8682f9fe..2543121ac 100644
--- a/setup.py
+++ b/setup.py
@@ -63,7 +63,7 @@
 
 setup(
     name = 'OpenFisca-Core',
-    version = '37.0.2',
+    version = '38.0.0',
     author = 'OpenFisca Team',
     author_email = 'contact@openfisca.org',
     classifiers = [