diff --git a/Project.toml b/Project.toml
index fa3e86f8..a8ecf43b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "ForwardDiff"
 uuid = "f6369f11-7733-5829-9624-2563aa707210"
-version = "1.3.3"
+version = "1.4.0"
 
 [deps]
 CommonSubexpressions = "bbf7d656-a473-5ed7-a52c-81e309532950"
@@ -28,7 +28,7 @@ DiffRules = "1.4"
 DiffTests = "0.1"
 IrrationalConstants = "0.1, 0.2"
 JET = "0.9, 0.10"
-LogExpFunctions = "0.3"
+LogExpFunctions = "0.3, 1"
 NaNMath = "1"
 Preferences = "1"
 SpecialFunctions = "1, 2"