diff --git a/terrarium.yaml b/terrarium.yaml
index 395fb548..8d34971c 100644
--- a/terrarium.yaml
+++ b/terrarium.yaml
@@ -9,6 +9,4 @@ compute:
 
 dependencies:
   - id: ledgerdb
-    use: postgres
-    inputs:
-      version: "11.20"
+    use: mongodb