diff --git a/pyproject.toml b/pyproject.toml
index 4f3b4f3..2c333bc 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ python = "^3.6.1"
 # Optional dependencies to be part of `test` extra
 pytest = {version = "^5.1", optional = true}
 pytest-cov = {version = "^2.8.1", optional = true}
-pytest-mock = {version = "^1.13.0", optional = true}
+pytest-mock = {version = "^3.0.0", optional = true}
 pytest-html = {version = "^2.0.1", optional = true}
 pytest-asyncio = {version = "^0.14.0", optional = true}
 mock = {version = "^4.0.2", optional = true}