diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5eb9c4a..d70b6b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -113,7 +113,7 @@ jobs:
       - name: Check formatting (black)
         working-directory: ladybug/tools/python_api
         run: |
-          uv pip install black==26.3.0
+          uv pip install black==26.10.0
           .venv/bin/black --check src_py test
 
       - name: Run ruff check
@@ -184,7 +184,7 @@ jobs:
       - name: Check formatting (black)
         working-directory: ladybug/tools/python_api
         run: |
-          uv pip install black==26.3.0
+          uv pip install black==26.10.0
           .venv/bin/black --check src_py test
 
       - name: Run ruff check
diff --git a/pyproject.toml b/pyproject.toml
index 7450fe7..a2d21a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,8 +24,8 @@ dev = [
     "pytest",
     "pytest-asyncio~=1.0",
     "pytest-xdist~=3.0",
-    "setuptools~=80.9",
-    "black==26.3.0",
+    "setuptools>=80.9",
+    "black>=26.3.1",
     "ruff==0.15.19",
     "mypy==1.16.0",
     "torch>=2.5.0",