diff --git a/test/Project.toml b/test/Project.toml
index 07a3f5b..e0ea664 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -22,7 +22,7 @@ Aqua = "0.8"
 ForwardDiff = "1.3.3"
 JET = "0.9,0.10,0.11"
 Manifolds = "0.10, 0.11"
-Manopt = "0.5.25"
+Manopt = "0.5.25, 0.6"
 Optimization = "5.6.1"
 OptimizationBase = "5.1.3"
 OptimizationManopt = "1.3.2"