diff --git a/dev-requirements.txt b/dev-requirements.txt
index 2c0a449..f5cadb8 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -3,4 +3,4 @@ pytest>=3.0,<7
 coverage>=4.3,<7
 setuptools_scm>=1.15,<7.0
 tox>=2.5,<4.0
-pytest-cov>=2.5,<4.0
\ No newline at end of file
+pytest-cov>=2.5,<5.0
\ No newline at end of file