diff --git a/libraries/mathy_python/mathy/about.py b/libraries/mathy_python/mathy/about.py
index 73d30f5b..3c29c839 100644
--- a/libraries/mathy_python/mathy/about.py
+++ b/libraries/mathy_python/mathy/about.py
@@ -1,5 +1,5 @@
 __title__ = "mathy"
-__version__ = "0.9.0"
+__version__ = "0.9.1"
 __summary__ = "Mathy - RL environments for solving math problems step-by-step"
 __uri__ = "https://mathy.ai"
 __author__ = "Justin DuJardin"
diff --git a/libraries/website/docs/changelog.md b/libraries/website/docs/changelog.md
index 07fd0b5b..cf576db2 100644
--- a/libraries/website/docs/changelog.md
+++ b/libraries/website/docs/changelog.md
@@ -1,3 +1,10 @@
+## [0.9.1](https://github.com/justindujardin/mathy/compare/v0.9.0...v0.9.1) (2021-04-08)
+
+
+### Features
+
+* **requirements:** update to latest mathy_core/mathy_envs versions ([#57](https://github.com/justindujardin/mathy/issues/57)) ([7983d88](https://github.com/justindujardin/mathy/commit/7983d88f0f4a5ffb2c72db881e60682dabf3ada1))
+
 # [0.9.0](https://github.com/justindujardin/mathy/compare/v0.8.1...v0.9.0) (2020-10-18)