diff --git a/Project.toml b/Project.toml
index 5859d8c..15e62aa 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,7 +16,7 @@ Sobol = "ed01d8cd-4d21-5b2a-85b4-cc3bdc58bad4"
 
 [compat]
 AbstractGPs = "0.3"
-ChainRulesCore = "0.10"
+ChainRulesCore = "0.10, 1"
 IntervalArithmetic = "0.17, 0.18, 0.19"
 NonconvexCore = "0.1.4"
 NonconvexIpopt = "0.1.2"