diff --git a/Project.toml b/Project.toml
index 5aa9d16..75f3d5e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,7 @@ ImplicitDifferentiationStaticArraysExt = "StaticArrays"
 ImplicitDifferentiationZygoteExt = "Zygote"
 
 [compat]
-AbstractDifferentiation = "0.5, 0.6"
+AbstractDifferentiation = "0.5"
 ChainRulesCore = "1.14"
 ForwardDiff = "0.10"
 Krylov = "0.8, 0.9"