diff --git a/Project.toml b/Project.toml
index fe3ef1cd3..e61ddfd47 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ModelingToolkitStandardLibrary"
 uuid = "16a59e39-deab-5bd0-87e4-056b12336739"
 authors = ["Chris Rackauckas and Julia Computing"]
-version = "2.3.5"
+version = "2.4.0"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"