diff --git a/dev-requirements.txt b/dev-requirements.txt
index 6502bfec..a663c848 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,6 +1,6 @@
 -rrequirements.txt
 
-pytest==7.1.2
+pytest==7.0.1  # last version to support Python 3.6
 flake8==5.0.4
 pytest-timeout==2.1.0
 pytest-aiohttp==1.0.4