diff --git a/.drone.jsonnet b/.drone.jsonnet
index 9400766..f1f653b 100644
--- a/.drone.jsonnet
+++ b/.drone.jsonnet
@@ -26,7 +26,7 @@ local PipelineLint = {
   steps: [
     {
       name: 'flake8',
-      image: 'python:3.8',
+      image: 'python:3.9',
       environment: {
         PY_COLORS: 1,
       },
@@ -54,9 +54,10 @@ local PipelineTest = {
     PythonVersion(pyversion='3.6'),
     PythonVersion(pyversion='3.7'),
     PythonVersion(pyversion='3.8'),
+    PythonVersion(pyversion='3.9'),
     {
       name: 'codecov',
-      image: 'python:3.8',
+      image: 'python:3.9',
       environment: {
         PY_COLORS: 1,
         CODECOV_TOKEN: { from_secret: 'codecov_token' },
@@ -91,7 +92,7 @@ local PipelineSecurity = {
   steps: [
     {
       name: 'bandit',
-      image: 'python:3.8',
+      image: 'python:3.9',
       environment: {
         PY_COLORS: 1,
       },
@@ -120,7 +121,7 @@ local PipelineBuildPackage = {
   steps: [
     {
       name: 'build',
-      image: 'python:3.8',
+      image: 'python:3.9',
       commands: [
         'python setup.py sdist bdist_wheel',
       ],
@@ -178,7 +179,7 @@ local PipelineBuildContainer(arch='amd64') = {
   steps: [
     {
       name: 'build',
-      image: 'python:3.8',
+      image: 'python:3.9',
       commands: [
         'python setup.py bdist_wheel',
       ],
@@ -253,10 +254,9 @@ local PipelineDocs = {
   steps: [
     {
       name: 'assets',
-      image: 'byrnedo/alpine-curl',
+      image: 'thegeeklab/alpine-tools',
       commands: [
-        'mkdir -p docs/themes/hugo-geekdoc/',
-        'curl -L https://github.com/thegeeklab/hugo-geekdoc/releases/latest/download/hugo-geekdoc.tar.gz | tar -xz -C docs/themes/hugo-geekdoc/ --strip-components=1',
+        'make doc',
       ],
     },
     {
diff --git a/.drone.yml b/.drone.yml
index 2c4a33a..a9837d5 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -8,7 +8,7 @@ platform:
 
 steps:
 - name: flake8
-  image: python:3.8
+  image: python:3.9
   commands:
   - pip install -r dev-requirements.txt -qq
   - pip install -qq .
@@ -83,8 +83,21 @@ steps:
   depends_on:
   - clone
 
+- name: python39-pytest
+  image: python:3.9
+  commands:
+  - pip install -r dev-requirements.txt -qq
+  - pip install -qq .
+  - pytest ansiblelater --cov=ansiblelater --cov-append --no-cov-on-fail
+  - ansible-later --help
+  - ansible-later --version
+  environment:
+    PY_COLORS: 1
+  depends_on:
+  - clone
+
 - name: codecov
-  image: python:3.8
+  image: python:3.9
   commands:
   - pip install codecov -qq
   - codecov --required -X gcov
@@ -117,7 +130,7 @@ platform:
 
 steps:
 - name: bandit
-  image: python:3.8
+  image: python:3.9
   commands:
   - pip install -r dev-requirements.txt -qq
   - pip install -qq .
@@ -144,7 +157,7 @@ platform:
 
 steps:
 - name: build
-  image: python:3.8
+  image: python:3.9
   commands:
   - python setup.py sdist bdist_wheel
 
@@ -200,7 +213,7 @@ platform:
 
 steps:
 - name: build
-  image: python:3.8
+  image: python:3.9
   commands:
   - python setup.py bdist_wheel
 
@@ -276,7 +289,7 @@ platform:
 
 steps:
 - name: build
-  image: python:3.8
+  image: python:3.9
   commands:
   - python setup.py bdist_wheel
 
@@ -352,7 +365,7 @@ platform:
 
 steps:
 - name: build
-  image: python:3.8
+  image: python:3.9
   commands:
   - python setup.py bdist_wheel
 
@@ -431,10 +444,9 @@ concurrency:
 
 steps:
 - name: assets
-  image: byrnedo/alpine-curl
+  image: thegeeklab/alpine-tools
   commands:
-  - mkdir -p docs/themes/hugo-geekdoc/
-  - curl -L https://github.com/thegeeklab/hugo-geekdoc/releases/latest/download/hugo-geekdoc.tar.gz | tar -xz -C docs/themes/hugo-geekdoc/ --strip-components=1
+  - make doc
 
 - name: markdownlint
   image: node:lts-alpine
@@ -600,6 +612,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: c698684952096d475443bdc0acf44b6c4c4fd45b928f36504fd79c7ec68b82a8
+hmac: 6acd5ac50b0b72bac4369915f173bb9ee4a279923cfbef91909feceadf07ee35
 
 ...
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 1d053e7..ea113a4 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,9 +1,9 @@
-pydocstyle<4.0.0
+pydocstyle
 flake8
 flake8-colors
 flake8-blind-except
 flake8-builtins
-flake8-docstrings<=3.0.0
+flake8-docstrings
 flake8-isort
 flake8-logging-format
 flake8-polyfill
diff --git a/renovate.json b/renovate.json
index f45d8f1..91ced0d 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,5 +1,14 @@
 {
-  "extends": [
-    "config:base"
-  ]
+  "extends": ["config:base"],
+  "regexManagers": [
+    {
+      "fileMatch": ["^Makefile$"],
+      "matchStrings": [
+        "# renovate: datasource=(?<datasource>\\S+) depName=(?<depName>\\S+)( versioning=(?<versioning>.*?))?\\n.*?_VERSION := (?<currentValue>.*)\\s"
+      ]
+    }
+  ],
+  "droneci": {
+    "enabled": false
+  }
 }
diff --git a/setup.py b/setup.py
index 5d8abf3..c3de15a 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,7 @@ setup(
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Utilities",
         "Topic :: Software Development",
     ],