diff --git a/bucket/flow.json b/bucket/flow.json
index 91df9e933d..55109d8477 100644
--- a/bucket/flow.json
+++ b/bucket/flow.json
@@ -1,12 +1,12 @@
 {
-    "version": "0.172.0",
+    "version": "0.173.0",
     "description": "A static type checker for JavaScript code",
     "homepage": "https://flowtype.org/",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/facebook/flow/releases/download/v0.172.0/flow-win64-v0.172.0.zip",
-            "hash": "b89c9fa394caa04e169729bfc546b96882e3174e198e9cd12e6305e92667eb7f"
+            "url": "https://github.com/facebook/flow/releases/download/v0.173.0/flow-win64-v0.173.0.zip",
+            "hash": "04c6561b6cfacf431bd020a1b0ba17e7cd3d94de6d11e3a5c82abcb8229ca588"
         }
     },
     "extract_dir": "flow",