diff --git a/changelog.md b/changelog.md
index e16b4ac..3b7ab95 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,8 @@
 # Izuma E2E Edge Python Test Suite Change log
 
+## 1.2.3
+- Updated `aiohttp` to 3.9.0 (from 3.8.6).
+
 ## 1.2.2
 - Fixed misspellings.
 - Updated `aiohttp` to 3.8.6 and `requests` to 2.31.0.
diff --git a/requirements.txt b/requirements.txt
index d67bbfa..ee71f76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,4 @@ Jinja2==3.1.2
 pyyaml==6.0
 requests==2.31.0
 ws4py==0.5.1
-aiohttp==3.8.6
+aiohttp==3.9.0