diff --git a/requirements.txt b/requirements.txt
index 4036e54..54c5887 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ Markdown
 html2text==2014.12.29
 lxml==3.5
 parse==1.8.2
-aiohttp==3.1.3
+aiohttp==3.8.5
diff --git a/setup.py b/setup.py
index 6d59470..6132bbd 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ def read(f):
 
 install_requires = [
     'sdiff @ git+https://github.com/KeepSafe/html-structure-diff.git#egg=sdiff',
-    'aiohttp >=3, <3.4',
+    'aiohttp >=3, <3.9',
     'Markdown',
     'parse >=1, <2',
     'beautifulsoup4 >=4, <5',