diff --git a/roles/mail_server/molecule/default/molecule.yml b/roles/mail_server/molecule/default/molecule.yml
index d7126ff07176f472b30cb2174eef3522f95874f7..ffe849ff7b5ad402ab82db85b2d5b3459a7d2e07 100644
--- a/roles/mail_server/molecule/default/molecule.yml
+++ b/roles/mail_server/molecule/default/molecule.yml
@@ -59,7 +59,7 @@ platforms:
       - parameters-mandatory
       - buster
     box: debian/contrib-buster64
-    memory: 1536
+    memory: 2048
     cpus: 1
     interfaces:
       - auto_config: true
@@ -72,7 +72,7 @@ platforms:
       - parameters-optional
       - buster
     box: debian/contrib-buster64
-    memory: 1536
+    memory: 2048
     cpus: 1
     interfaces:
       - auto_config: true