diff --git a/.github/workflows/pr-ci.yml b/.github/workflows/pr-ci.yml
index 23e4e5b..010a21a 100644
--- a/.github/workflows/pr-ci.yml
+++ b/.github/workflows/pr-ci.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.6, 3.7, 3.8]
+        python: [3.6, 3.7, 3.8, 3.9]
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python }}
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4047c5c..a313a4e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -49,13 +49,14 @@ repos:
   - id: bandit
     files: ^(src|python)/
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v0.711
+  rev: v0.780
   hooks:
   - id: mypy
     files: ^src/
     args:
     - --strict
     - --implicit-reexport
+    - --no-warn-unused-ignores
 - repo: local
   hooks:
   - id: pylint-local
diff --git a/.pylintrc b/.pylintrc
index fdfba49..1a97f4e 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -13,6 +13,7 @@ disable=
     too-few-public-methods,     # triggers when inheriting
     ungrouped-imports,          # clashes with isort
     duplicate-code,             # broken, setup.py
+    invalid-name,
 
 [BASIC]