diff --git a/Project.toml b/Project.toml
index a8e74ae..245a56b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,7 +19,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 DiffEqBase = "^6"
 DoubleFloats = "1"
 FFTW = "^1"
-GenericSchur = "0.4"
+GenericSchur = "0.4, 0.5"
 Polynomials = "^1"
 Reexport = "^0.2"
 julia = "^1"