diff --git a/pyproject.toml b/pyproject.toml
index 6f2b9e6869..b7b90fa6a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ tomlkit = "^0.5.3"
 
 [tool.poetry.dev-dependencies]
 ipython = "^7.2"
-black = "^18.3-alpha.0"
+black = "^19.3b0"
 pytest = "^4.0"
 flake8 = "^3.6"
 pytest-cov = "^2.6"