diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 3f45827..1d9b5fe 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -9,3 +9,5 @@ tag = True
 
 [bumpversion:file:abp/static/index.html]
 
+[bumpversion:file:README.md]
+
diff --git a/README.md b/README.md
index 049301f..d4f9953 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# abp
+# abp 0.4.18
 
 Python port of Anders and Briegel' s [method](https://arxiv.org/abs/quant-ph/0504117) for fast simulation of Clifford circuits. You can read the full documentation [here](https://peteshadbolt.co.uk/abp/).
 
@@ -7,7 +7,7 @@ Python port of Anders and Briegel' s [method](https://arxiv.org/abs/quant-ph/050
 It's easiest to install with `pip`:
 
 ```shell
-$ pip install --user abp
+$ pip install --user abp==0.4.18
 ```
 
 Or clone and install in `develop` mode: