diff --git a/Pipfile b/Pipfile
index 7da045b..3389a5f 100644
--- a/Pipfile
+++ b/Pipfile
@@ -6,6 +6,7 @@ name = "pypi"
 [packages]
 datasette = "*"
 openpyxl = "*"
+datasette-cluster-map = {git = "https://github.com/ColinMaudry/datasette-cluster-map.git"}
 
 [dev-packages]
 
diff --git a/Pipfile.lock b/Pipfile.lock
index 01e81ba..b6b5386 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "0f69978e4a0f7f84e2d023ec14145ec36c04cf2a1dbb81e9df828f15974dacf8"
+            "sha256": "a68f59702ede1f11b621640f3bb5e181c234e28215225d728bec55d8353c2d6e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -78,6 +78,18 @@
             "index": "pypi",
             "version": "==0.64.1"
         },
+        "datasette-cluster-map": {
+            "git": "https://github.com/ColinMaudry/datasette-cluster-map.git",
+            "ref": "ab9c0d79448efbd737d9487bfcee227246ef3b87"
+        },
+        "datasette-leaflet": {
+            "hashes": [
+                "sha256:8fd4e634304be392ae6f7de770d4f22b95a37caecd676a35faeb6200da9423bc",
+                "sha256:fd88c25666e7680b25b4c6e5546bd02c9f5836bbc0fee61042dbb6b93d4139f0"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==0.2.2"
+        },
         "et-xmlfile": {
             "hashes": [
                 "sha256:8eb9e2bc2f8c97e37a2dc85a09ecdcdec9d8a396530a6d5a33b30b9a92da0c5c",