diff --git a/HISTORY.rst b/HISTORY.rst
index d216111f..a9b42375 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,11 @@
 =======
 History
 =======
+2.4.0 (2022-02-10)
+Use Timing Package (Tempo,Tempo2,Pint) definition of EQUAD. Enterprise has
+broken backwards compatibility, and here we use the `tnequad` flag to switch on
+the old definition.
+
 2.3.4 (2021-11-02)
 Fix phase shift seed caching issue.
 
diff --git a/enterprise_extensions/__init__.py b/enterprise_extensions/__init__.py
index 4618fe65..3d67cd6b 100644
--- a/enterprise_extensions/__init__.py
+++ b/enterprise_extensions/__init__.py
@@ -1 +1 @@
-__version__ = "2.3.4"
+__version__ = "2.4.0"
diff --git a/setup.cfg b/setup.cfg
index bf93c4ca..f9a47209 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.3.4
+current_version = 2.4.0
 commit = True
 tag = True