diff --git a/bucket/unison.json b/bucket/unison.json
new file mode 100644
index 0000000000..dce2ac2b82
--- /dev/null
+++ b/bucket/unison.json
@@ -0,0 +1,17 @@
+{
+    "version": "2.51.2",
+    "description": "A file-synchronization tool.",
+    "homepage": "https://www.cis.upenn.edu/~bcpierce/unison",
+    "license": "GPL-3.0-only",
+    "url": "https://github.com/bcpierce00/unison/releases/download/v2.51.2/unison-windows-2.51.2-text.zip",
+    "hash": "9c1e1fca202dd1e7f55b82c1abf632ee546424253284a062839e7a7212a180bf",
+    "extract_dir": "unison-windows-2.51.2-text",
+    "bin": "unison.exe",
+    "checkver": {
+        "github": "https://github.com/bcpierce00/unison"
+    },
+    "autoupdate": {
+        "url": "https://github.com/bcpierce00/unison/releases/download/v$version/unison-windows-$version-text.zip",
+        "extract_dir": "unison-windows-$version-text"
+    }
+}