diff --git a/bucket/b2.json b/bucket/b2.json
index 6b934fc8f9..e8794c30dd 100644
--- a/bucket/b2.json
+++ b/bucket/b2.json
@@ -1,12 +1,12 @@
 {
-    "version": "4.5.0",
+    "version": "4.5.1",
     "description": "Command-line tool that gives easy access to all of the capabilities of B2 Cloud Storage",
     "homepage": "https://www.backblaze.com/b2/docs/quick_command_line.html",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/Backblaze/B2_Command_Line_Tool/releases/download/v4.5.0/b2-windows.exe#/b2.exe",
-            "hash": "e126a3165d3eb5b066e34640fdb62feccca750676c83a16474dc93460430a8c2"
+            "url": "https://github.com/Backblaze/B2_Command_Line_Tool/releases/download/v4.5.1/b2-windows.exe#/b2.exe",
+            "hash": "f47c6e5cda158291506b7e161bc0df7609c33eb92e329fadbe0066cd7c765964"
         }
     },
     "bin": "b2.exe",