diff --git a/pyproject.toml b/pyproject.toml
index 2cc543d8..385a4650 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,14 +48,11 @@ openpyxl = "^3.1.2"
 markupsafe = "^2.1.3"
 
 [tool.poetry.dev-dependencies]
-# black = {version = "^20.8b1", allow-prereleases = true}
-# black = { version = "^19.10b0", allow-prereleases = true }
-black = {version = "*", allow-prereleases = true}
+black = { version = "^19.10b0", allow-prereleases = true }
 # flake8 = "^3.9.2"
 flake8 = { version = "^5.0.0", python = ">=3.8,<4.0"}
-# snakefmt = "^0.4.0"
-snakefmt = "*"
-importlib-metadata = "^3.0.0"
+snakefmt = "^0.1.4"
+importlib-metadata = "^3.10.1"
 # pytest = "^6.2.4"
 pytest = "^7.4.1"
 # sphinx = "^3.2.1"
@@ -81,8 +78,7 @@ commitizen = "^2.0.0"
 # ptvsd = "^4.3.2"
 ptvsd = "^4.3.2"
 # rope = "^0.19.0"
-# rope = "^1.9.0"
-rope = "*"
+rope = "^1.9.0"
 # pytest-mock = "^3.6.1"
 pytest-mock = "^3.11.1"
 sphinx-pydantic = "^0.1.1"