diff --git a/bucket/flow.json b/bucket/flow.json
index ad6465512f..72fe5237b0 100644
--- a/bucket/flow.json
+++ b/bucket/flow.json
@@ -1,12 +1,12 @@
 {
-    "version": "0.266.0",
+    "version": "0.266.1",
     "description": "A static type checker for JavaScript code",
     "homepage": "https://flow.org/",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/facebook/flow/releases/download/v0.266.0/flow-win64-v0.266.0.zip",
-            "hash": "15cac1a3fc3ed8f20706020971169f5d7133fda3fa53fc24b566504e03dc7638"
+            "url": "https://github.com/facebook/flow/releases/download/v0.266.1/flow-win64-v0.266.1.zip",
+            "hash": "973afd2bd51cd9ec50b574d12d97fef16dea40f980de470c80690a08060ea8ad"
         }
     },
     "extract_dir": "flow",