diff --git a/.gitignore b/.gitignore
index 72383bb..8d16a1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .venv
 .env
 __pycache__
-.vscode
\ No newline at end of file
+.vscode
+.idea
\ No newline at end of file
diff --git a/app/routers/embed.py b/app/routers/embed.py
index f3f36aa..f895db8 100644
--- a/app/routers/embed.py
+++ b/app/routers/embed.py
@@ -63,7 +63,8 @@ def load_latest_statuses(url, token, limit):
         raise Exception('Failed to contact Mastodon', response.text)
     return json.loads(response.text)
 
-def convertToHTML(statuses):
+
+def convertToHTML(statuses) -> str:
     css_file = Path(__file__).parent / '../resources/embed.css'
     with css_file.open('r') as css:
         doc, tag, text = Doc().tagtext()
@@ -96,7 +97,8 @@ def convertToHTML(statuses):
 
         return indent(doc.getvalue())
 
-def uploadToAmazonS3(bucket, key, content): 
+def uploadToAmazonS3(bucket, key, content:str):
+    logger.info(f'Uploading embed html to {bucket}/{key}')
     s3 = boto3.resource('s3')
-    object = s3.Object(bucket, key) # type: ignore
-    object.put(Body=content, ACL='public-read', ContentType='text/html')
\ No newline at end of file
+    s3_object = s3.Object(bucket, key)
+    s3_object.put(Body=content.encode("utf-8"), ACL='public-read', ContentType='text/html')
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index ca6cfa6..55d4dc0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ fastapi[standard]==0.113.0
 pydantic==2.8.0
 pydantic-settings==2.12.0
 requests==2.32.3
-boto3==1.36.21
+boto3==1.35.48 # Note: Upgrading might break boto3 upload with XAmzContentSHA256Mismatch errors
 yattag==1.16.1
 timeago==1.0.16
 certifi==2024.12.14