diff --git a/app/models.py b/app/models.py
index 0b9c3af..47a33b9 100644
--- a/app/models.py
+++ b/app/models.py
@@ -20,7 +20,7 @@ class Item(Base):
     id = Column(Integer, primary_key=True)
     title = Column(String(255), index=True)
 
-    description = Column(Text(300), index=True)
+    description = Column(String(300), index=True)
 
     owner_id = Column(Integer, ForeignKey("users.id"))
 
@@ -42,7 +42,7 @@ class Volunteer(Base):
 
     id = Column(Integer, primary_key=True)
     name = Column(String(45), index=True)
-    linkedin = Column(String(3072), index=True)
+    linkedin = Column(String(3000), index=True)
     email = Column(String(255), index=True)
     is_active = Column(Boolean, default=True)
     jobtitle_id = Column(Integer, ForeignKey("jobtitle.id"))