diff --git a/dreamer4/dreamer4.py b/dreamer4/dreamer4.py
index a25989d..da25586 100644
--- a/dreamer4/dreamer4.py
+++ b/dreamer4/dreamer4.py
@@ -2870,7 +2870,7 @@ class DynamicsWorldModel(Module):
                 # maybe store old actions
 
                 if store_old_action_unembeds:
-                    acc_policy_embed = safe_cat((acc_policy_embed, policy_embed))
+                    acc_policy_embed = safe_cat((acc_policy_embed, policy_embed), dim = 1)
 
                 # sample actions
 
diff --git a/pyproject.toml b/pyproject.toml
index 9df3c9e..1830d30 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "dreamer4"
-version = "0.0.98"
+version = "0.0.99"
 description = "Dreamer 4"
 authors = [
     { name = "Phil Wang", email = "lucidrains@gmail.com" }