diff --git a/CHANGES.md b/CHANGES.md
index d2362e5..3f82c87 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+# v0.0.41
+
+Add exercises to a number of text book chapters.
+
 # v0.0.40
 
 Add more documentation on Zero sum games.
diff --git a/src/nashpy/__init__.py b/src/nashpy/__init__.py
index bec63b5..ff98c0f 100644
--- a/src/nashpy/__init__.py
+++ b/src/nashpy/__init__.py
@@ -2,4 +2,4 @@
 
 from .game import Game
 
-__version__ = "0.0.40"
+__version__ = "0.0.41"