diff --git a/README.md b/README.md
index 8337f2ef2b..dade470553 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
              alt="ACE version">
     </a>
     <a href="https://github.com/acemod/ACE3/releases/download/v3.2.0/ace3_3.2.0.zip">
-        <img src="http://img.shields.io/badge/Download-51.7_MB-green.svg"
+        <img src="http://img.shields.io/badge/Download-56.5_MB-green.svg"
              alt="ACE download">
     </a>
     <a href="https://github.com/acemod/ACE3/issues">