diff --git a/.github/workflows/notebooks.yml b/.github/workflows/notebooks.yml
index 807bf8932..dda7e1a8e 100644
--- a/.github/workflows/notebooks.yml
+++ b/.github/workflows/notebooks.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10"]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
 
     steps:
       - name: Checkout github repo (+ download lfs dependencies)
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c934b9631..2b12b216f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -34,8 +34,7 @@ repos:
     hooks:
       - id: pydocstyle
         args:
-          - --convention=google
-          - --match="(?!test_).*\.py"
+          - --config=.pydocstyle.ini
         exclude: |
           (?x)(
               ^docs/source/conf.py|
diff --git a/.pydocstyle.ini b/.pydocstyle.ini
new file mode 100644
index 000000000..f7f27725f
--- /dev/null
+++ b/.pydocstyle.ini
@@ -0,0 +1,4 @@
+[pydocstyle]
+inherit = false
+convention = google
+match = .*\.py
diff --git a/LICENSE b/LICENSE
index a8af59516..37c9b8dce 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2014-2021 by the BlendingToolKit contributors on Github at <https://github.com/LSSTDESC/BlendingToolKit>. All rights reserved.
+Copyright (c) 2014-2021 by the BlendingToolKit contributors on Github at https://github.com/LSSTDESC/BlendingToolKit. All rights reserved.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/btk/__init__.py b/btk/__init__.py
index d7f98a0c0..d1974cd86 100644
--- a/btk/__init__.py
+++ b/btk/__init__.py
@@ -4,7 +4,10 @@
 providing a framework to test user defined detection/deblending/measurement
 algorithms.
 """
-from importlib import metadata
+try:
+    from importlib import metadata
+except ImportError:  # for Python<3.8
+    import importlib_metadata as metadata
 
 __author__ = "btk developers"
 __email__ = "imendoza@umich.edu"
diff --git a/pyproject.toml b/pyproject.toml
index 0dd04fcf4..7d6dd77ca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,8 +78,3 @@ includes = ["btk"]
 [build-system]
 build-backend = "pdm.pep517.api"
 requires = ["pdm-pep517>=1.0.0"]
-
-[tool.pydocstyle]
-convention = "google"
-inherit = false
-match = "(?!test_).*\\.py"