diff --git a/CMakeLists.txt b/CMakeLists.txt
index 41e184e..d974285 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.7)
 project(AnotherMemCheck)
 
-set(AnotherMemCheck_VERSION 2.0)
+set(AnotherMemCheck_VERSION 2.1)
 set(AnotherMemCheck_SOVERSION 2)
 
 set(AnotherMemCheck_SOURCES
diff --git a/Changelog.md b/Changelog.md
index 5b1c77a..7bc6a45 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## Verison 2.1
+
+Previous implementation did not fully account for total size of a call to
+calloc. This version should fix this.
+
 ## Version 2.0
 
 Minor refactorings.