diff --git a/deployment/check/data-model-tf-proxmox/nixosTest.nix b/deployment/check/data-model-tf-proxmox/nixosTest.nix
index 59741bfc..4630ea92 100644
--- a/deployment/check/data-model-tf-proxmox/nixosTest.nix
+++ b/deployment/check/data-model-tf-proxmox/nixosTest.nix
@@ -98,7 +98,7 @@ in
       };
       virtualisation = {
         diskSize = 24 * 1024;
-        memorySize = 4 * 1024;
+        memorySize = 3 * 1024;
       };
     };