diff --git a/known_good.json b/known_good.json
index c6fd4ff4..d40b91c5 100644
--- a/known_good.json
+++ b/known_good.json
@@ -5,14 +5,14 @@
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Tools",
       "subdir" : "External/spirv-tools",
-      "commit" : "5dd2f76918bb2d0d67628e338f60f724f3e02e13"
+      "commit" : "54524ffa6a1b5ab173ebff89fb31e4a21d365477"
     },
     {
       "name" : "spirv-tools/external/spirv-headers",
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Headers",
       "subdir" : "External/spirv-tools/external/spirv-headers",
-      "commit" : "07f259e68af3a540038fa32df522554e74f53ed5"
+      "commit" : "4cce109bcdb7fbb028d21230f07ea292a684bea1"
     }
   ]
 }