diff --git a/README.md b/README.md
index 3b2d6b43b..d78d0a19d 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Import the `galois` package in Python.
 In [1]: import galois
 
 In [2]: galois.__version__
-Out[2]: '0.3.0'
+Out[2]: '0.3.1'
 ```
 
 ### Create a [`FieldArray`](https://mhostetter.github.io/galois/latest/api/galois.FieldArray/) subclass
diff --git a/docs/index.rst b/docs/index.rst
index 4f20d4a94..51de8a892 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -145,6 +145,7 @@ If this library was useful to you in your research, please cite us. Following th
    :hidden:
 
    release-notes/versioning.rst
+   release-notes/v0.3.1.md
    release-notes/v0.3.0.md
    release-notes/v0.2.0.md
    release-notes/v0.1.2.md
diff --git a/docs/release-notes/v0.3.1.md b/docs/release-notes/v0.3.1.md
new file mode 100644
index 000000000..fca30bf7d
--- /dev/null
+++ b/docs/release-notes/v0.3.1.md
@@ -0,0 +1,25 @@
+# v0.3.1
+
+*Released December 12, 2022*
+
+## Changes
+
+- Fixed a bug in the Pollard $\rho$ factorization algorithm that caused an occasional infinite loop. ([#450](https://github.com/mhostetter/galois/pull/450))
+  ```ipython
+  In [1]: import galois
+
+  # v0.3.0
+  In [2]: %time galois.GF(2400610585866217)
+  # Never returns...
+
+  # v0.3.1
+  In [2]: %time galois.GF(2400610585866217)
+  Wall time: 96 ms
+  Out[2]: <class 'galois.GF(2400610585866217)'>
+  ```
+- Formatted the code and unit tests with `black` and `isort`. ([#446](https://github.com/mhostetter/galois/pull/446), [#449](https://github.com/mhostetter/galois/pull/449))
+
+## Contributors
+
+- Matt Hostetter ([@mhostetter](https://github.com/mhostetter))
+- [@pivis](https://github.com/pivis)