diff --git a/CHANGELOG.md b/CHANGELOG.md
index c0874202..0277d1c3 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 `protoc@latest` to 3.26.0.
+
 ## [2.28.13] - 2024-03-13
 
 - Update `wasmtime@latest` to 18.0.3.
diff --git a/manifests/protoc.json b/manifests/protoc.json
index 7ea33675..8faf75dd 100644
--- a/manifests/protoc.json
+++ b/manifests/protoc.json
@@ -2,10 +2,35 @@
   "rust_crate": null,
   "template": null,
   "latest": {
-    "version": "3.25.3"
+    "version": "3.26.0"
   },
   "3": {
-    "version": "3.25.3"
+    "version": "3.26.0"
+  },
+  "3.26": {
+    "version": "3.26.0"
+  },
+  "3.26.0": {
+    "x86_64_linux_gnu": {
+      "url": "https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protoc-26.0-linux-x86_64.zip",
+      "checksum": "3ed20f841fd9cb7a8344dd4158f6fcb67d333c8206b33a7dbb899bcbc08d92eb"
+    },
+    "x86_64_macos": {
+      "url": "https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protoc-26.0-osx-x86_64.zip",
+      "checksum": "2624286cf7787c5b75af68d7766fe62bf92f459f1ee77f9a9a8cdae63bd285d1"
+    },
+    "x86_64_windows": {
+      "url": "https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protoc-26.0-win64.zip",
+      "checksum": "f5a0e21c09e823fe5cc18d6057f8db7a3d5df420c09314d548b9139c4193156d"
+    },
+    "aarch64_linux_gnu": {
+      "url": "https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protoc-26.0-linux-aarch_64.zip",
+      "checksum": "556e4f77fd3a04c0b31e3560540241e86ec576d447733f19a3f9c056724e9b03"
+    },
+    "aarch64_macos": {
+      "url": "https://github.com/protocolbuffers/protobuf/releases/download/v26.0/protoc-26.0-osx-aarch_64.zip",
+      "checksum": "218537fbdbd0054b516a346b89892a48626cb08bb8351c8d771c1545fd80c7c1"
+    }
   },
   "3.25": {
     "version": "3.25.3"