diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index e5e6a07a..8f1c1f3b 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,12 +11,7 @@ jobs:
     strategy:
       matrix:
         py_ver: ["3.9", "3.10"]
-        mysql_ver: ["8.0", "5.7"]
-        include:
-          - py_ver: "3.8"
-            mysql_ver: "5.7"
-          - py_ver: "3.7"
-            mysql_ver: "5.7"
+        mysql_ver: ["8.0"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{matrix.py_ver}}
@@ -31,4 +26,5 @@ jobs:
         run: |
           python_version=${{matrix.py_ver}}
           black element_array_ephys --check --verbose --target-version py${python_version//.}
+          black notebooks --check --verbose --target-version py${python_version//.}
 
diff --git a/element_array_ephys/plotting/corr.py b/element_array_ephys/plotting/corr.py
index a8daa8cb..d94a0d9f 100644
--- a/element_array_ephys/plotting/corr.py
+++ b/element_array_ephys/plotting/corr.py
@@ -1,5 +1,4 @@
-"""Code adapted from International Brain Laboratory, T. (2021). ibllib [Computer software]. https://github.com/int-brain-lab/ibllib
-"""
+"""Code adapted from International Brain Laboratory, T. (2021). ibllib [Computer software]. https://github.com/int-brain-lab/ibllib"""
 
 import numpy as np