diff --git a/Pipfile b/Pipfile
index d358f3be..08d34fee 100644
--- a/Pipfile
+++ b/Pipfile
@@ -4,7 +4,7 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-black = {version = "2022.1.0", markers = "python_version >= '3.6'"}
+black = {version = "22.1.0", markers = "python_version >= '3.6'"}
 coverage = "*"
 flake8 = "*"
 importlib-metadata = "*"
diff --git a/pyproject.toml b/pyproject.toml
index 14bcede1..c7d0ef9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.4"]
 
 [tool.black]
 line-length = 120
-target-version = ["py27", "py35", "py36", "py37", "py38"]
+target-version = ["py35"]
 
 [tool.setuptools_scm]
 write_to = "rsconnect_jupyter/version.py"