diff --git a/Project.toml b/Project.toml
index 7da496c..b971db8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -42,8 +42,8 @@ CoordinateTransformations = "0.5, 0.6"
 Distributions = "0.25"
 DocStringExtensions = "0.7, 0.8, 0.9"
 KernelDensityEstimate = "0.5.10"
-Manifolds = "0.8"
-ManifoldsBase = "0.13, 0.14, 0.15"
+Manifolds = "0.8, 0.9"
+ManifoldsBase = "0.14, 0.15"
 NLsolve = "3, 4"
 Optim = "1"
 RecursiveArrayTools = "2"