diff --git a/lang/python/python-aiohttp/Makefile b/lang/python/python-aiohttp/Makefile
index f1de0b55b..837fc65c5 100644
--- a/lang/python/python-aiohttp/Makefile
+++ b/lang/python/python-aiohttp/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=aiohttp
 PKG_VERSION:=3.5.4
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=aiohttp-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://files.pythonhosted.org/packages/source/a/aiohttp/
diff --git a/lang/python/python-aiohttp/patches/010-CVE-2021-21330.patch b/lang/python/python-aiohttp/patches/010-CVE-2021-21330.patch
new file mode 100644
index 000000000..e0b9cdf3a
--- /dev/null
+++ b/lang/python/python-aiohttp/patches/010-CVE-2021-21330.patch
@@ -0,0 +1,25 @@
+From 5d19ea5e28ae9a55ef1f33ea820f813bf26a7e57 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jelmer=20Vernoo=C4=B3?= <jelmer@jelmer.uk>
+Date: Wed, 10 Feb 2021 04:33:11 +0000
+Subject: [PATCH] Prevent open redirects from normalize_path_middleware.
+
+---
+ CHANGES/openredirects.bugfix |  1 +
+ aiohttp/web_middlewares.py   |  4 ++--
+ 2 files changed, 7 insertions(+), 8 deletions(-)
+ create mode 100644 CHANGES/openredirects.bugfix
+
+--- /dev/null
++++ b/CHANGES/openredirects.bugfix
+@@ -0,0 +1 @@
++Prevent open redirects from normalize_path_middleware.
+--- a/aiohttp/web_middlewares.py
++++ b/aiohttp/web_middlewares.py
+@@ -101,6 +101,7 @@ def normalize_path_middleware(
+                 paths_to_check.append(merged_slashes[:-1])
+ 
+             for path in paths_to_check:
++                path = re.sub("^//+", "/", path) # SECURITY: GHSA-v6wp-4m6f-gcjg
+                 resolves, request = await _check_request_resolves(
+                     request, path)
+                 if resolves: