diff --git a/priv/es-mappings/activity.json b/priv/es-mappings/activity.json
new file mode 100644
index 000000000..e476fd59f
--- /dev/null
+++ b/priv/es-mappings/activity.json
@@ -0,0 +1,21 @@
+{
+  "properties": {
+    "_timestamp": {
+      "type": "date",
+      "index": true
+    },
+    "instance": {
+      "type": "keyword"
+    },
+    "content": {
+      "type": "text"
+    },
+    "hashtags": {
+      "type": "keyword"
+    },
+    "user": {
+      "type": "text"
+    }
+  }
+}
+
diff --git a/priv/es-mappings/hashtag.json b/priv/es-mappings/hashtag.json
new file mode 100644
index 000000000..5330b8a2e
--- /dev/null
+++ b/priv/es-mappings/hashtag.json
@@ -0,0 +1,7 @@
+{
+  "properties": {
+    "hashtag": {
+      "type": "text"
+    }
+  }
+}
diff --git a/priv/es-mappings/user.json b/priv/es-mappings/user.json
new file mode 100644
index 000000000..20beb75c2
--- /dev/null
+++ b/priv/es-mappings/user.json
@@ -0,0 +1,14 @@
+{
+  "properties": {
+    "instance": {
+      "type": "keyword"
+    },
+    "nickname": {
+      "type": "text"
+    },
+    "bio": {
+      "type": "text"
+    }
+  }
+}
+