diff --git a/dev-requirements.txt b/dev-requirements.txt
index a69ff69..570cb6f 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,5 @@
 -r requirements.txt
 coverage==5.5
 pytest==5.3.3
-pytest-aiohttp==0.3.0
\ No newline at end of file
+pytest-aiohttp==0.3.0
+aiohttp>=3.12.14 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file