diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 009e3f7d..9d95bcf7 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -45,15 +45,14 @@ jobs:
         run: |
           uv venv .venv
 
-      - name: Install dependencies
+      - name: Install ruff
         run: |
           . .venv/bin/activate
-          if [ -f pip/cpu_requirements.txt ]; then pip install -r pip/cpu_requirements.txt; fi
           uv pip install ruff
 
       - name: Lint with ruff
         run: |
           # Check all lint rules
           . .venv/bin/activate
-          uv run ruff check atomsci/
+          ruff check atomsci/
 
diff --git a/pip/cpu_requirements.txt b/pip/cpu_requirements.txt
index 4e0db5f5..4e7940e3 100644
--- a/pip/cpu_requirements.txt
+++ b/pip/cpu_requirements.txt
@@ -24,7 +24,7 @@ torch==2.1.2+cpu
 torchdata==0.7.1
 
 # Lightning; pin to a recent stable series to avoid breaking changes
-lightning==2.2.5
+lightning>=2.2,<2.7
 
 # TensorFlow CPU; compatible with DeepChem 2.8
 tensorflow-cpu~=2.14.0
@@ -100,4 +100,4 @@ mordred
 # ==========================
 
 pytest
-ipykernel
\ No newline at end of file
+ipykernel