diff --git a/README.md b/README.md
index 033e674..f4edaf1 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Eris maintains an up-to-date set of reports for every file in a codebase.
 
 ## Installation
 
-#### Ubuntu (21.10)
+#### Ubuntu (22.04)
 
 Install eris directly using pip, and apt install the tools eris relies on:
 
diff --git a/eris/eris/__main__.py b/eris/eris/__main__.py
index 0f371f5..1f1b9d8 100755
--- a/eris/eris/__main__.py
+++ b/eris/eris/__main__.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 # -*- coding: utf-8 -*-
 
 
diff --git a/eris/eris/pydoc_color.py b/eris/eris/pydoc_color.py
index 9955978..f6678e9 100755
--- a/eris/eris/pydoc_color.py
+++ b/eris/eris/pydoc_color.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import pydoc
diff --git a/eris/eris/tools.py b/eris/eris/tools.py
index 7e56a24..91e87d2 100755
--- a/eris/eris/tools.py
+++ b/eris/eris/tools.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 # -*- coding: utf-8 -*-
 
 
@@ -35,7 +35,7 @@ import toml
 import eris
 
 
-PYTHON_VERSION = "3.9"
+PYTHON_VERSION = "3.10"
 PYTHON_EXECUTABLE = "python" + PYTHON_VERSION
 CACHE_PATH = ".eris"
 
diff --git a/eris/eris/tools.toml b/eris/eris/tools.toml
index 9b377e8..aef39d3 100644
--- a/eris/eris/tools.toml
+++ b/eris/eris/tools.toml
@@ -46,7 +46,7 @@ tools_for_extensions = [
 [python_syntax]
   dependencies = []
   url = "https://en.wikipedia.org/wiki/Python_syntax_and_semantics"
-  command = "python3.9 -m py_compile"
+  command = "python3.10 -m py_compile"
 
 [pydoc]
   dependencies = []
@@ -59,28 +59,28 @@ tools_for_extensions = [
 [pycodestyle]
   dependencies = ["python3-pycodestyle"]
   url = "http://pycodestyle.pycqa.org/en/latest/"
-  command = "python3.9 -m pycodestyle --max-line-length=100"
+  command = "python3.10 -m pycodestyle --max-line-length=100"
 
 [pydocstyle]
   dependencies = ["python3-pydocstyle"]
   url = "http://www.pydocstyle.org/en/2.1.1/usage.html"
-  command = "python3.9 -m pydocstyle --ignore=D1,D213"
+  command = "python3.10 -m pydocstyle --ignore=D1,D213"
 
 [pyflakes]
   dependencies = ["python3-pyflakes"]
   url = "https://pypi.org/project/pyflakes/"
-  command = "python3.9 -m pyflakes"
+  command = "python3.10 -m pyflakes"
 
 [pylint]
   dependencies = ["pylint"]
   url = "https://www.pylint.org/"
-  command = "python3.9 -m pylint -f colorized --errors-only"
+  command = "python3.10 -m pylint -f colorized --errors-only"
   has_color = true
 
 [bandit]
   dependencies = ["python3-bandit"]
   url = "https://pypi.org/project/bandit/"
-  command = "python3.9 -m bandit.cli.main -f screen"
+  command = "python3.10 -m bandit.cli.main -f screen"
   has_color = true
   timeout = 60
 
@@ -230,7 +230,7 @@ tools_for_extensions = [
   command = "cppcheck --error-exitcode=1"
 
 [ruby_syntax]
-  dependencies = ["ruby2.7"]
+  dependencies = ["ruby3.0"]
   url = "http://www.ruby-lang.org/"
   command = "ruby -c"
 
@@ -268,7 +268,7 @@ tools_for_extensions = [
 [yamllint]
   dependencies = ["yamllint"]
   url = "https://github.com/adrienverge/yamllint"
-  command = "python3.9 -m yamllint -f colored"
+  command = "python3.10 -m yamllint -f colored"
   has_color = true
 
 [mediainfo]
diff --git a/eris/eris/webserver.py b/eris/eris/webserver.py
index 9021050..57f7810 100755
--- a/eris/eris/webserver.py
+++ b/eris/eris/webserver.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import asyncio
diff --git a/eris/eris/worker.py b/eris/eris/worker.py
index 3460b01..4f76194 100755
--- a/eris/eris/worker.py
+++ b/eris/eris/worker.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import asyncio
diff --git a/eris/setup.py b/eris/setup.py
index 0d76d5f..a4e5750 100755
--- a/eris/setup.py
+++ b/eris/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import os
@@ -16,7 +16,7 @@ setup(name="eris",
       author="Andrew Hamilton",
       author_email="and_hamilton@yahoo.com",
       license="Artistic 2.0",
-      python_requires=">=3.9.0",
+      python_requires=">=3.10.0",
       packages=["eris"],
       py_modules=["lscolors", "sorted_collection"],
       package_data={"eris": ["LS_COLORS.sh", "tools.toml"]},
diff --git a/eris/tests/__main___test.py b/eris/tests/__main___test.py
index 0e336a5..07e45e8 100755
--- a/eris/tests/__main___test.py
+++ b/eris/tests/__main___test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import asyncio
diff --git a/eris/tests/paged_list_test.py b/eris/tests/paged_list_test.py
index 64c3625..760a2cb 100755
--- a/eris/tests/paged_list_test.py
+++ b/eris/tests/paged_list_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import pickle
diff --git a/eris/tests/tools_test.py b/eris/tests/tools_test.py
index e50dd74..a81e61c 100755
--- a/eris/tests/tools_test.py
+++ b/eris/tests/tools_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import contextlib
diff --git a/eris/tests/worker_test.py b/eris/tests/worker_test.py
index 3e1d470..7a5eea4 100755
--- a/eris/tests/worker_test.py
+++ b/eris/tests/worker_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import asyncio
diff --git a/fill3/fill3/__init__.py b/fill3/fill3/__init__.py
index fc31582..19e090e 100755
--- a/fill3/fill3/__init__.py
+++ b/fill3/fill3/__init__.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3.9
+#!/usr/bin/python3.10
 # -*- coding: utf-8 -*-
 
 
diff --git a/fill3/setup.py b/fill3/setup.py
index e979afe..22a8b7f 100755
--- a/fill3/setup.py
+++ b/fill3/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import os
diff --git a/fill3/tests/fill3_test.py b/fill3/tests/fill3_test.py
index d67f2e2..d9814ec 100755
--- a/fill3/tests/fill3_test.py
+++ b/fill3/tests/fill3_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 # -*- coding: utf-8 -*-
 
 
diff --git a/install b/install
index 68c6563..ff941a0 100755
--- a/install
+++ b/install
@@ -4,12 +4,12 @@
 set -e
 
 
-sudo apt-get install -y python3.9 python3-pip
-python3.9 -m pip install --upgrade pip
-python3.9 -m pip install $1 ./eris
+sudo apt-get install -y python3.10 python3-pip
+python3.10 -m pip install --upgrade pip
+python3.10 -m pip install $1 ./eris
 eris --apt-install-tools
 # When developing...
-# python3.9 -m pip install -e ./eris
-# python3.9 -m pip install -e ./fill3
-# python3.9 -m pip install -e ./termstr
-# python3.9 -m pip install -e ./lscolors
+# python3.10 -m pip install -e ./eris
+# python3.10 -m pip install -e ./fill3
+# python3.10 -m pip install -e ./termstr
+# python3.10 -m pip install -e ./lscolors
diff --git a/lscolors/setup.py b/lscolors/setup.py
index 1c5d749..2113ae4 100755
--- a/lscolors/setup.py
+++ b/lscolors/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 try:
diff --git a/lscolors/tests/lscolors_test.py b/lscolors/tests/lscolors_test.py
index ad2bdd4..4a9c808 100755
--- a/lscolors/tests/lscolors_test.py
+++ b/lscolors/tests/lscolors_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import os
diff --git a/packaging/Dockerfile b/packaging/Dockerfile
index 1313d76..e7580ad 100644
--- a/packaging/Dockerfile
+++ b/packaging/Dockerfile
@@ -3,8 +3,8 @@ FROM ubuntu:impish
 
 RUN apt-get update
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y tzdata
-RUN apt-get install -y sudo python3.9 python3-pip
-RUN python3.9 -m pip install --upgrade pip
+RUN apt-get install -y sudo python3.10 python3-pip
+RUN python3.10 -m pip install --upgrade pip
 COPY . eris
 RUN cd eris && ./install
 
diff --git a/packaging/appimage/AppRun b/packaging/appimage/AppRun
index d2ad94c..46887f6 100755
--- a/packaging/appimage/AppRun
+++ b/packaging/appimage/AppRun
@@ -13,7 +13,7 @@ export PATH="${HERE}"/usr/bin/:"${HERE}"/usr/local/bin/:"${PATH}"
 export UNION_PRELOAD="${HERE}"
 export LD_PRELOAD="${HERE}/libunionpreload.so"
 export LD_LIBRARY_PATH="${HERE}"/usr/lib/:"${HERE}"/usr/lib/i386-linux-gnu/:"${HERE}"/usr/lib/x86_64-linux-gnu/:"${HERE}"/usr/lib32/:"${HERE}"/usr/lib64/:"${HERE}"/lib/:"${HERE}"/lib/i386-linux-gnu/:"${HERE}"/lib/x86_64-linux-gnu/:"${HERE}"/lib32/:"${HERE}"/lib64/:"${LD_LIBRARY_PATH}"
-export PYTHONPATH=/usr/local/lib/python3.9/dist-packages:"${PYTHONPATH}"
+export PYTHONPATH=/usr/local/lib/python3.10/dist-packages:"${PYTHONPATH}"
 if [ -z $APPIMAGE_ENTER ]; then
     EXEC=$(grep -e '^Exec=.*' "${HERE}"/*.desktop | head -n 1 | cut -d "=" -f 2- | sed -e 's|%.||g')
     exec ${EXEC} $@
diff --git a/packaging/make-appimage.py b/packaging/make-appimage.py
index 0fa29f4..53f5aa8 100755
--- a/packaging/make-appimage.py
+++ b/packaging/make-appimage.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import os
diff --git a/packaging/make-readme.py b/packaging/make-readme.py
index 3afd433..dd61ae6 100755
--- a/packaging/make-readme.py
+++ b/packaging/make-readme.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 # -*- coding: utf-8 -*-
 
 
@@ -22,7 +22,7 @@ Eris maintains an up-to-date set of reports for every file in a codebase.
 
 ## Installation
 
-#### Ubuntu (21.10)
+#### Ubuntu (22.04)
 
 Install eris directly using pip, and apt install the tools eris relies on:
 
diff --git a/packaging/make-snapcraft.py b/packaging/make-snapcraft.py
index b0fe93f..30f08f2 100755
--- a/packaging/make-snapcraft.py
+++ b/packaging/make-snapcraft.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 # -*- coding: utf-8 -*-
 
 
@@ -27,13 +27,13 @@ apps:
   eris:
     command: bin/eris
     environment:
-      PYTHONPATH: $SNAP/lib/python3.9/site-packages:$SNAP/lib/python3.9/dist-packages:$PYTHONPATH
+      PYTHONPATH: $SNAP/lib/python3.10/site-packages:$SNAP/lib/python3.10/dist-packages:$PYTHONPATH
     plugs:
       - home
   webserver:
     command: bin/eris-webserver
     environment:
-      PYTHONPATH: $SNAP/lib/python3.9/site-packages:$SNAP/lib/python3.9/dist-packages:$PYTHONPATH
+      PYTHONPATH: $SNAP/lib/python3.10/site-packages:$SNAP/lib/python3.10/dist-packages:$PYTHONPATH
     plugs:
       - home
       - network-bind
@@ -53,9 +53,9 @@ parts:
       - ./fill3
       - ./eris
     build-environment:
-      - SNAPCRAFT_PYTHON_INTERPRETER: python3.9
+      - SNAPCRAFT_PYTHON_INTERPRETER: python3.10
     stage-packages:
-      - python3.9-venv
+      - python3.10-venv
       - python3-distutils
       - python3-pkg-resources
       - """, end="")
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 6a6c4c8..6a60d0f 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -18,13 +18,13 @@ apps:
   eris:
     command: bin/eris
     environment:
-      PYTHONPATH: $SNAP/lib/python3.9/site-packages:$SNAP/lib/python3.9/dist-packages:$PYTHONPATH
+      PYTHONPATH: $SNAP/lib/python3.10/site-packages:$SNAP/lib/python3.10/dist-packages:$PYTHONPATH
     plugs:
       - home
   webserver:
     command: bin/eris-webserver
     environment:
-      PYTHONPATH: $SNAP/lib/python3.9/site-packages:$SNAP/lib/python3.9/dist-packages:$PYTHONPATH
+      PYTHONPATH: $SNAP/lib/python3.10/site-packages:$SNAP/lib/python3.10/dist-packages:$PYTHONPATH
     plugs:
       - home
       - network-bind
@@ -44,9 +44,9 @@ parts:
       - ./fill3
       - ./eris
     build-environment:
-      - SNAPCRAFT_PYTHON_INTERPRETER: python3.9
+      - SNAPCRAFT_PYTHON_INTERPRETER: python3.10
     stage-packages:
-      - python3.9-venv
+      - python3.10-venv
       - python3-distutils
       - python3-pkg-resources
       - binutils
diff --git a/termstr/setup.py b/termstr/setup.py
index 41d25de..2a08076 100755
--- a/termstr/setup.py
+++ b/termstr/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 try:
diff --git a/termstr/tests/termstr_test.py b/termstr/tests/termstr_test.py
index 274500d..be38474 100755
--- a/termstr/tests/termstr_test.py
+++ b/termstr/tests/termstr_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.9
+#!/usr/bin/env python3.10
 
 
 import os