diff --git a/Project.toml b/Project.toml
index 2a41c48..d622141 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,7 +40,7 @@ KernelFunctions = "0.10"
 LineSearches = "7"
 MKLSparse = "1"
 NaNMath = "1"
-Nabla = "< 0.13"
+Nabla = "< 0.13, 0.13"
 Optim = "1"
 ParameterHandling = "0.4"
 Polynomials = "3"