diff --git a/bucket/rust-gnu.json b/bucket/rust-gnu.json
index 4115edaf09..4c647f62f4 100644
--- a/bucket/rust-gnu.json
+++ b/bucket/rust-gnu.json
@@ -1,17 +1,17 @@
 {
-    "version": "1.90.0",
+    "version": "1.91.0",
     "description": "A language empowering everyone to build reliable and efficient software. (GNU toolchain)",
     "homepage": "https://www.rust-lang.org",
     "license": "MIT|Apache-2.0",
     "notes": "Use the rustup package instead for easier management of multiple toolchains, including beta/nightly releases.",
     "architecture": {
         "64bit": {
-            "url": "https://static.rust-lang.org/dist/rust-1.90.0-x86_64-pc-windows-gnu.msi",
-            "hash": "7b3e97a7f9f64011f5a591db589d56608508c7a8c78f4b6759521354753b250e"
+            "url": "https://static.rust-lang.org/dist/rust-1.91.0-x86_64-pc-windows-gnu.msi",
+            "hash": "5dc3d0af6d6cd26f6573e23322d006395a96673ad7ad25472f3f6328cf886c26"
         },
         "32bit": {
-            "url": "https://static.rust-lang.org/dist/rust-1.90.0-i686-pc-windows-gnu.msi",
-            "hash": "f5285fbd1888ff4d55ab6824c38f559f9309e96eccd7c9ca9a73c4eabed48e35"
+            "url": "https://static.rust-lang.org/dist/rust-1.91.0-i686-pc-windows-gnu.msi",
+            "hash": "fc4c9c7efef9d00ffd34c11e22e5969140f61eaf3b6e7d4b1488f83ef13f6efa"
         }
     },
     "extract_dir": "Rust",