diff --git a/CHANGELOG.md b/CHANGELOG.md
index be97e138..d743cc68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Update `cargo-binstall@latest` to 1.21.1.
+
 ## [2.85.2] - 2026-07-26
 
 - Update `prek@latest` to 0.4.11.
diff --git a/manifests/cargo-binstall.json b/manifests/cargo-binstall.json
index eda82cda..a9dd8dec 100644
--- a/manifests/cargo-binstall.json
+++ b/manifests/cargo-binstall.json
@@ -24,36 +24,36 @@
     }
   },
   "latest": {
-    "version": "1.21.0"
+    "version": "1.21.1"
   },
-  "1.21.0": {
+  "1.21.1": {
     "x86_64_linux_musl": {
-      "etag": "0x8DEE1994C53774E",
-      "hash": "b1880b3631d1ff0fd1f286a0d20f82f373355651f9fbd7f4d0d7fbfe218bf562"
+      "etag": "0x8DEEA47343921EB",
+      "hash": "630c8f8803a686aa6779497f0f0fb51d49822fb5fc3c514d8ced33b34e338e6e"
     },
     "x86_64_macos": {
-      "etag": "0x8DEE19951CD804E",
-      "hash": "ad7cd72d8074ef613ab392cae291c7c8bcc25a4f6690e726ed665ded8640871e"
+      "etag": "0x8DEEA473912152B",
+      "hash": "73894951a5c5343476e703b9f2ccea9e829396147ee33bded6a5e94c09298d81"
     },
     "x86_64_windows": {
-      "etag": "0x8DEE1994FF39023",
-      "hash": "f87cc2ca3a103664dab3eac521aa4e49ae72fa0b1e70fba837cd12932001629b"
+      "etag": "0x8DEEA47378CC386",
+      "hash": "27aee4e73cd8b1d479730cb9cdbd89b1114453a135689d4ee1a7e7f913f0ffe1"
     },
     "aarch64_linux_musl": {
-      "etag": "0x8DEE1995B4237C2",
-      "hash": "31f0564854bd031f20c9abfe33312ea630e6a06a2f6d6309b54b5649608f55be"
+      "etag": "0x8DEEA47422710B5",
+      "hash": "1dc2979f3c83aade9a1b4344589d14fafa63459b759222528d11419f5cca9cc2"
     },
     "aarch64_macos": {
-      "etag": "0x8DEE19961DF6DE7",
-      "hash": "e44737132b2d0543e72a6f128307ebbf204b171f57b2ea9db55b8bbe54b6b632"
+      "etag": "0x8DEEA4747ECABC7",
+      "hash": "bd03935f1a6d652647f6d42a2cd39396a55094ffddc65bed0debebfe32feea43"
     },
     "aarch64_windows": {
-      "etag": "0x8DEE1995F965E06",
-      "hash": "3ccaa7cc4b7d4ef00ffc9b080299e9b4d7e344a3b62ac81e4fd8d934d7ecbd76"
+      "etag": "0x8DEEA4746125100",
+      "hash": "93fc0bf26857cefda5d36010ab0f1faf3dddc5e26f10cbd051e4c94e6fdad17c"
     },
     "riscv64_linux_musl": {
-      "etag": "0x8DEE19955A7F7B1",
-      "hash": "6e3d8344d398ef52937c30ed9653652821dcd56e31028f0d8b72a6f01410412c"
+      "etag": "0x8DEEA473C8834D4",
+      "hash": "181ef7c7e64adc32f5b29f6903ebe54c56a97178d7f6ecc38589757f98944feb"
     }
   }
 }