diff --git a/BaseTools/Bin/nasm_ext_dep.yaml b/BaseTools/Bin/nasm_ext_dep.yaml
index 7a56dd2b8b..56703d4c18 100644
--- a/BaseTools/Bin/nasm_ext_dep.yaml
+++ b/BaseTools/Bin/nasm_ext_dep.yaml
@@ -13,6 +13,6 @@
   "type": "nuget",
   "name": "mu_nasm",
   "source": "https://api.nuget.org/v3/index.json",
-  "version": "2.15.05",
+  "version": "2.15.5",
   "flags": ["set_path", "host_specific"]
 }