diff --git a/centos-7/template.json b/centos-7/template.json
index 26ffa66..824b475 100644
--- a/centos-7/template.json
+++ b/centos-7/template.json
@@ -143,7 +143,7 @@
       "shutdown_command": "shutdown -P now",
       "tools_upload_flavor": "linux",
       "vmx_data": {
-        "memsize": "512",
+        "memsize": "1024",
         "numvcpus": "1",
         "cpuid.coresPerSocket": "1"
       }