diff --git a/tox.ini b/tox.ini
index 2dfea04..291ad8e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,50 +1,50 @@
 [tox]
 envlist = flake8,bashate,isort,py36
 skipsdist=true
 
 [testenv]
 setenv =
     PYWIKIBOT_NO_USER_CONFIG = 1
 # Since pywikibot fallback to the user home directory:
     HOME={envdir}
     PYTHONPATH={toxinidir}/integraality
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/requirements-dev.txt
 commands = pytest --cov --cov-config=setup.cfg -vvv --showlocals {posargs}
 whitelist_externals =
     bash
 
 [testenv:flake8]
 deps =
-    flake8==3.7.8
+    flake8==3.7.9
 commands = flake8
 
 [testenv:bashate]
 deps = bashate==2.0.0
 commands =
     bash -c "grep --recursive --binary-files=without-match \
         --files-with-match '^.!.*\(ba\)\?sh$' \
         --exclude-dir .tox \
         --exclude-dir .git \
         --exclude-dir .venv \
         --exclude-dir deploy \
         {toxinidir} | xargs bashate --error . --verbose --ignore=E006"
 
 [testenv:isort]
 deps = isort==4.3.21
 commands =
     bash -c "find {toxinidir} \
         -type d \
             \( \
               -path {toxinidir}/.git -o \
               -path {toxinidir}/.tox -o \
               -path {toxinidir}/deploy -o \
               -path {toxinidir}/.venv  \
             \) -prune -o \
         -name '*.py' \
         -print | xargs isort {posargs:--check-only} --verbose"
 
 
 [flake8]
 exclude = .venv,.tox,.git,deploy