diff --git a/migrations/1525942800_app.down.sql b/migrations/1525942800_app.down.sql
index 35afd48..84e702a 100644
--- a/migrations/1525942800_app.down.sql
+++ b/migrations/1525942800_app.down.sql
@@ -1 +1 @@
-DROP TABLE connection;
\ No newline at end of file
+DROP TABLE connection;
diff --git a/migrations/1525942800_app.up.sql b/migrations/1525942800_app.up.sql
index dc72482..eb37a0a 100644
--- a/migrations/1525942800_app.up.sql
+++ b/migrations/1525942800_app.up.sql
@@ -12,4 +12,3 @@ create table connection
   updated_at timestamp with time zone,
   active     boolean
 );
-
diff --git a/migrations/1525944630_app.up.sql b/migrations/1525944630_app.up.sql
index 9dba83a..b2db243 100644
--- a/migrations/1525944630_app.up.sql
+++ b/migrations/1525944630_app.up.sql
@@ -11,4 +11,3 @@ create table bot
   updated_at timestamp with time zone,
   active     boolean
 );
-
diff --git a/migrations/1526308450_app.down.sql b/migrations/1526308450_app.down.sql
index c8f5021..30a630e 100644
--- a/migrations/1526308450_app.down.sql
+++ b/migrations/1526308450_app.down.sql
@@ -1 +1 @@
-DROP TABLE mapping;
\ No newline at end of file
+DROP TABLE mapping;
diff --git a/migrations/1526308450_app.up.sql b/migrations/1526308450_app.up.sql
index 8f12e41..1a03523 100644
--- a/migrations/1526308450_app.up.sql
+++ b/migrations/1526308450_app.up.sql
@@ -6,4 +6,3 @@ create table mapping
   site_code text,
   bot_id    text
 );
-
diff --git a/migrations/1526636120_app.down.sql b/migrations/1526636120_app.down.sql
new file mode 100644
index 0000000..31551a5
--- /dev/null
+++ b/migrations/1526636120_app.down.sql
@@ -0,0 +1,11 @@
+alter table connection
+  alter column client_id type text,
+  alter column api_key type text,
+  alter column api_url type text,
+  alter column mg_url type text,
+  alter column mg_token type text;
+
+alter table bot
+  alter column client_id type text,
+  alter column name type text,
+  alter column token type text;
diff --git a/migrations/1526636120_app.up.sql b/migrations/1526636120_app.up.sql
new file mode 100644
index 0000000..3a64f45
--- /dev/null
+++ b/migrations/1526636120_app.up.sql
@@ -0,0 +1,11 @@
+alter table connection
+  alter column client_id type varchar(70),
+  alter column api_key type varchar(100),
+  alter column api_url type varchar(100),
+  alter column mg_url type varchar(100),
+  alter column mg_token type varchar(100);
+
+alter table bot
+  alter column client_id type varchar(70),
+  alter column name type varchar(40),
+  alter column token type varchar(100);