diff --git a/README.md b/README.md
index 792658c..8e04b0d 100644
--- a/README.md
+++ b/README.md
@@ -20,10 +20,21 @@ CREATE TABLE IF NOT EXISTS thx (
     tps_ip_latitude TEXT NULL,
     tps_ip_longitude TEXT NULL,
     account_telephone_first_seen TEXT NULL,
-    account_login_first_seen TEXT NULL
+    account_login_first_seen TEXT NULL,
+    input_ip_address TEXT NULL
 );
 
 CREATE INDEX IF NOT EXISTS idx_thx_application_key ON thx(application_key);
 CREATE INDEX IF NOT EXISTS idx_thx_application_timestamp ON thx(application_timestamp);
+CREATE INDEX IF NOT EXISTS idx_thx_input_ip_address ON thx(input_ip_address);
 ```
 
+For an existing table, apply the additive migration before deploying the block change:
+
+```sql
+ALTER TABLE public.thx
+    ADD COLUMN IF NOT EXISTS input_ip_address TEXT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_thx_input_ip_address
+    ON public.thx(input_ip_address);
+```
diff --git a/main.sql b/main.sql
index d3a5965..373abe1 100644
--- a/main.sql
+++ b/main.sql
@@ -10,7 +10,8 @@ INSERT INTO public.thx (
     tps_ip_latitude,
     tps_ip_longitude,
     account_telephone_first_seen,
-    account_login_first_seen
+    account_login_first_seen,
+    input_ip_address
 )
 VALUES (
     $application_key,
@@ -24,7 +25,8 @@ VALUES (
     $tps_ip_latitude,
     $tps_ip_longitude,
     $account_telephone_first_seen,
-    $account_login_first_seen
+    $account_login_first_seen,
+    $input_ip_address
 )
 ON CONFLICT (application_key)
 DO UPDATE
@@ -38,5 +40,5 @@ DO UPDATE
         tps_ip_latitude                = EXCLUDED.tps_ip_latitude,
         tps_ip_longitude               = EXCLUDED.tps_ip_longitude,
         account_telephone_first_seen   = EXCLUDED.account_telephone_first_seen,
-        account_login_first_seen       = EXCLUDED.account_login_first_seen;
-
+        account_login_first_seen       = EXCLUDED.account_login_first_seen,
+        input_ip_address               = EXCLUDED.input_ip_address;
diff --git a/request_schema.json b/request_schema.json
index bd368e2..2418119 100644
--- a/request_schema.json
+++ b/request_schema.json
@@ -38,6 +38,9 @@
     },
     "account_login_first_seen": {
       "type": ["string", "null"]
+    },
+    "input_ip_address": {
+      "type": ["string", "null"]
     }
   },
   "required": [
@@ -45,4 +48,3 @@
     "application_timestamp"
   ]
 }
-