diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcf3c103..3108d827 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 `mdbook@latest` to 0.4.46.
+
 - Update `knope@latest` to 0.18.4.
 
 - Update `cargo-semver-checks@latest` to 0.40.0.
diff --git a/manifests/mdbook.json b/manifests/mdbook.json
index 5774dcfe..eade9202 100644
--- a/manifests/mdbook.json
+++ b/manifests/mdbook.json
@@ -22,10 +22,32 @@
   },
   "license_markdown": "[MPL-2.0](https://github.com/rust-lang/mdBook/blob/master/LICENSE)",
   "latest": {
-    "version": "0.4.45"
+    "version": "0.4.46"
   },
   "0.4": {
-    "version": "0.4.45"
+    "version": "0.4.46"
+  },
+  "0.4.46": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DD5E8F11D1ABAE",
+      "checksum": "d6933db72914c3587b378e732e6d2e7222bb86977a0441901ff35c9ad8b74ec9"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DD5E8F04995E30",
+      "checksum": "1a8ce00ea3c4d7a46e3072830681ecdfd9c6c81b43769067bdb2aa324bc41e1d"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DD5E8F4E1BBE06",
+      "checksum": "6d12a28938a5b40e086311cdd251009619f6b881ab883c646c2b73bfa7b31464"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DD5E8F1BF50EA1",
+      "checksum": "ef094090c21c6994982bcb3e8bcb0cc36a67cfb0fdf71822c974e635bf620b34"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DD5E8F01B0F6D8",
+      "checksum": "49769f0d6b257f4bdb17bf4e7ed4e4db04312b82230b958d9893dba9f71e578e"
+    }
   },
   "0.4.45": {
     "x86_64_linux_musl": {