diff --git a/known_good.json b/known_good.json
index 0eebc7d..c2575d0 100644
--- a/known_good.json
+++ b/known_good.json
@@ -5,7 +5,7 @@
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Tools",
       "subdir" : "External/spirv-tools",
-      "commit" : "73735db943d7165d725883a1da0ad9eac79c1e34"
+      "commit" : "45dd184c790d6bfc78a5a74a10c37e888b1823fa"
     },
     {
       "name" : "spirv-tools/external/spirv-headers",