diff --git a/requirements-tests.txt b/requirements-tests.txt
index 3ef3c4fd9..d7ef561fa 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -1,7 +1,7 @@
 -e .
 pytest >=7.1.3,<8.0.0
 coverage[toml] >= 6.5.0,< 8.0
-mypy ==1.3.0
+mypy ==1.4.0
 ruff ==0.0.272
 black == 23.3.0
 httpx >=0.23.0,<0.24.0