diff --git a/bucket/flow.json b/bucket/flow.json
index 33d5620a0d..4d725e5ad6 100644
--- a/bucket/flow.json
+++ b/bucket/flow.json
@@ -1,12 +1,12 @@
 {
-    "version": "0.198.0",
+    "version": "0.198.1",
     "description": "A static type checker for JavaScript code",
     "homepage": "https://flowtype.org/",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/facebook/flow/releases/download/v0.198.0/flow-win64-v0.198.0.zip",
-            "hash": "4784b3b35540e43e00e53548c09e3b7bf07650dfbe6409063d6dda27b107afb6"
+            "url": "https://github.com/facebook/flow/releases/download/v0.198.1/flow-win64-v0.198.1.zip",
+            "hash": "945353c27fcbcae7741c3cff5487e8125b0dc3db127493771d212e97f16c97d8"
         }
     },
     "extract_dir": "flow",