diff --git a/app/storage.py b/app/storage.py
index 03d419e..b9bf4ab 100644
--- a/app/storage.py
+++ b/app/storage.py
@@ -88,7 +88,13 @@ class S3Storage:
         region: str = "auto",
         public_url: str = "",
     ) -> None:
-        import boto3
+        try:
+            import boto3
+        except ImportError:
+            raise ImportError(
+                "boto3 is required for S3 storage. "
+                "Install it with: pip install boto3"
+            )
 
         self.bucket = bucket
         self.public_url = public_url.rstrip("/")
diff --git a/requirements.txt b/requirements.txt
index ae631c7..96a5d08 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ jinja2
 bcrypt
 python-jose[cryptography]
 aiofiles
+boto3