diff --git a/.changeset/marketplace-new-extension-sept7.md b/.changeset/marketplace-new-extension-sept7.md
new file mode 100644
index 000000000..a845151cc
--- /dev/null
+++ b/.changeset/marketplace-new-extension-sept7.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/website/src/data/extensions.ts b/website/src/data/extensions.ts
index e935cbddd..5d8056447 100644
--- a/website/src/data/extensions.ts
+++ b/website/src/data/extensions.ts
@@ -91,6 +91,15 @@ export const EXTENSION_CATALOG: readonly ExtensionListing[] = [
     version: "0.1.0",
     apiVersion: 4,
   },
+  {
+    repo: "Alexs7zzh/hunk-extensions",
+    name: "hunk-extensions",
+    summary:
+      "Adds Plastic SCM support to Hunk, so a Plastic working copy reviews the way a Git one does.",
+    categories: ["VCS backend"],
+    version: "0.1.0",
+    apiVersion: 16,
+  },
   {
     repo: "astwys/hunk-adaptive-theme",
     name: "hunk-adaptive-theme",