diff --git a/doc/conf.py b/doc/conf.py
index 0094a22..9326527 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -48,9 +48,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '0.3'
+version = '0.4'
 # The full version, including alpha/beta/rc tags.
-release = '0.3'
+release = '0.4'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index 592e3ee..0791ace 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@
 
 setup(
     name='gccjit',
-    version='0.3',
+    version='0.4',
     author="David Malcolm",
     author_email="jit@gcc.gnu.org",
     url="https://github.com/davidmalcolm/pygccjit",