diff --git a/pyproject.toml b/pyproject.toml
index 068eb6e..8bc4762 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ classifiers = [
 ]
 dependencies = [
   "openjd-sessions == 0.8.*",
-  "openjd-model == 0.4.*"
+  "openjd-model >= 0.4,< 0.6"
 ]
 
 [project.urls]