diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ec16ec1..a2a51a22 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 0.4.50.
+
 - Update `deepsource@latest` to 0.9.0.
 
 - Update `cargo-shear@latest` to 1.3.0.
diff --git a/manifests/mdbook.json b/manifests/mdbook.json
index b1bacff8..8d5fd400 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": "0.4.49"
+    "version": "0.4.50"
   },
   "0.4": {
-    "version": "0.4.49"
+    "version": "0.4.50"
+  },
+  "0.4.50": {
+    "x86_64_linux_musl": {
+      "etag": "0x8DD9A0FBAE3ABF7",
+      "checksum": "01affcd71d4b251160745d92565bfa8b8a2f882f4bcc4f2837edf33176175d2f"
+    },
+    "x86_64_macos": {
+      "etag": "0x8DD9A0FAD3137BC",
+      "checksum": "c2d2db0bb54b3643d475eccb57225ad58fe11f8156a1ed359a4a13e45a15104f"
+    },
+    "x86_64_windows": {
+      "etag": "0x8DD9A100D1D0DD2",
+      "checksum": "01d8b4d4a0b91fc8725ff17ce597fa3b428996f193a8e21cc41632939d12b485"
+    },
+    "aarch64_linux_musl": {
+      "etag": "0x8DD9A0FC121B692",
+      "checksum": "c1c5e471089086a3f9ae8ffc30bea78f9fc965ea2f3004a583fe4456640c923f"
+    },
+    "aarch64_macos": {
+      "etag": "0x8DD9A0FA80B50D7",
+      "checksum": "96669d1ebc37861d727bac45683c2e4258f26bcbac0c3a8510539d2285436ccd"
+    }
   },
   "0.4.49": {
     "x86_64_linux_musl": {