diff --git a/Project.toml b/Project.toml
index 90380ac..4d1efbc 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,8 +21,8 @@ Colors = "0.12"
 CommonRLSpaces = "0.2"
 D3Trees = "0.3"
 MCTS = "0.5"
-POMDPTools = "0.1"
-POMDPs = "0.9"
+POMDPTools = "0.1, 1"
+POMDPs = "0.9, 1"
 Parameters = "0.12"
 ParticleFilters = "0.5"
 StaticArrays = "1"