diff --git a/resources/north-america/united_states/OSM-SouthBay.json b/resources/north-america/united_states/OSM-SouthBay.json
deleted file mode 100644
index 0f9c5e98..00000000
--- a/resources/north-america/united_states/OSM-SouthBay.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "id": "OSM-South-Bay",
-  "type": "meetup",
-  "account": "open-source-san-jose",
-  "locationSet": {"include": ["south_sf_bay_area.geojson"]},
-  "languageCodes": ["en"],
-  "order": 5,
-  "strings": {
-    "name": "OSM South Bay",
-    "description": "Join our online South Bay Map Nights",
-    "extendedDescription": "Meet fellow South Bay mappers and help out with local mapping projects at our online meetup every other Tuesday night, in partnership with Open Source San José. Programming and GIS skills are not required."
-  }
-}
diff --git a/resources/north-america/united_states/Open-Source-San-Jose-Mastodon.json b/resources/north-america/united_states/Open-Source-San-Jose-Mastodon.json
new file mode 100644
index 00000000..6e476aad
--- /dev/null
+++ b/resources/north-america/united_states/Open-Source-San-Jose-Mastodon.json
@@ -0,0 +1,13 @@
+{
+  "id": "Open-Source-San-Jose-Mastodon",
+  "type": "mastodon",
+  "account": "@opensourcesanjose@sfba.social",
+  "locationSet": {"include": ["south_sf_bay_area.geojson"]},
+  "languageCodes": ["en"],
+  "order": 4,
+  "strings": {
+    "name": "Open Source San José Mastodon",
+    "description": "Follow Open Source San José on Mastodon.",
+    "extendedDescription": "Open Source San José is a local nonprofit organization that connects volunteer coders and designers with community needs through civic technology. OSSJ sponsors the local volunteer mapping community’s biweekly South Bay Map Nights."
+  }
+}