diff --git a/d3a_api_client/__init__.py b/d3a_api_client/__init__.py
index 77ccd7d5..03bd2cfc 100644
--- a/d3a_api_client/__init__.py
+++ b/d3a_api_client/__init__.py
@@ -1,7 +1,7 @@
 from abc import ABC, abstractmethod
 
 # *IMPORTANT*: Don't manually change the version here. Use the 'bumpversion' utility.
-__version__ = '0.12.0'
+__version__ = '1.0.0'
 
 
 class APIClientInterface(ABC):
diff --git a/setup.cfg b/setup.cfg
index bf73a48c..d69b10e1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,8 @@
 [bumpversion]
-current_version = 0.12.0
+current_version = 1.0.0
 commit = True
 tag = True
 
 [bumpversion:file:d3a_api_client/__init__.py]
 search = __version__ = "{current_version}"
+