diff --git a/pyproject.toml b/pyproject.toml
index 2f8a36344fe4294c5a7bb7bdfc4ccd8787b8e787..d5a156a9e9ac1e0b8de954694ce552c64d42c551 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ python = "^3"
 numpy  = ">= 1.2"
 
 [tool.poetry.dev-dependencies]
-pytest = "^5.2"
+pytest = "^5"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]