diff --git a/requirements/_db_mysql.txt b/requirements/_db_mysql.txt
index f9ef8d7475e..c6f92040201 100644
--- a/requirements/_db_mysql.txt
+++ b/requirements/_db_mysql.txt
@@ -4,4 +4,4 @@
 # Ref https://docs.djangoproject.com/en/1.10/ref/databases/#mysql-db-api-drivers
 
 # Recommended versions https://docs.djangoproject.com/en/1.10/ref/databases/#id9
-mysqlclient>=1.3.3,<=1.3.12
+mysqlclient>=2.0,<2.1
diff --git a/requirements/_db_postgresql.txt b/requirements/_db_postgresql.txt
index 5954011477c..a0c547d7ae4 100644
--- a/requirements/_db_postgresql.txt
+++ b/requirements/_db_postgresql.txt
@@ -1,4 +1,4 @@
 # PostgreSQL Database
 
 # https://docs.djangoproject.com/en/1.10/ref/databases/#postgresql-notes
-psycopg2>=2.7,<2.8
+psycopg2>=2.9,<2.10
diff --git a/requirements/_docs.txt b/requirements/_docs.txt
index 573f1990836..d9cbac6b334 100644
--- a/requirements/_docs.txt
+++ b/requirements/_docs.txt
@@ -1,5 +1,5 @@
 # Documentation
 
 sphinx-bootstrap-theme
-readme-renderer==18.1
-Sphinx==1.7.2
+readme-renderer==29.0
+Sphinx==4.1.2
diff --git a/requirements/_lint.txt b/requirements/_lint.txt
index 0e3ec7d8e5a..23915bed0f7 100644
--- a/requirements/_lint.txt
+++ b/requirements/_lint.txt
@@ -1,7 +1,7 @@
 # Linting tools
 
-flake8==3.5.0
-isort==4.3.4
-pycodestyle==2.3.1
-pydocstyle==2.1.1
-pylint==1.8.4
+flake8==3.9.2
+isort==5.9.3
+pycodestyle==2.7.0
+pydocstyle==6.1.1
+pylint==2.9.6
diff --git a/requirements/base.txt b/requirements/base.txt
index e1e75d21e45..e1e746c9579 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -5,42 +5,43 @@
 Django~=1.11.12  # rq.filter: <1.12
 
 # Django apps
-django-allauth==0.35.0
-django-assets==0.12
+django-allauth==0.45.0
+django-assets==2.0
 django-bulk-update==2.2.0
-django-contact-form==1.5
+django-contact-form==1.9
 django-contrib-comments==1.7.3,!=1.8.0  # rq.filter: !=1.8.0
 django-overextends==0.4.3
-django-redis==4.9.0
-django-rq==1.0.1
-django-sortedm2m==1.5.0
-django-statici18n==1.7.0
+django-redis==5.0.0
+django-rq==2.4.1
+django-sortedm2m==3.0.2
+django-statici18n==2.0.1
 
 dj.subcommand==0.0.3
 
 # Libraries
-Babel==2.5.3
+Babel==2.9.1
 cssmin==0.2.0
-diff-match-patch==20121119
-dirsync==2.2.3
-jsonfield==2.0.2
+diff-match-patch==20200713
+dirsync==2.2.5
+jsonfield==3.1.0
 # Note: also adjust pootle/checks::LXML_MINIMUM_REQUIRED_VERSION
-lxml>=4.2,<4.3
+lxml>=4.6,<4.7
+makeyfile==0.0.2
 pathlib==1.0.1
-python-dateutil==2.7.2
-python-levenshtein==0.12.0
-pytz==2018.3
-rq==0.10.0
-scandir==1.7
+python-dateutil==2.8.2
+python-levenshtein==0.12.2
+pytz==2021.1
+rq==1.9.0
+scandir==1.10.0
 stemming==1.0.1
-pycountry==18.2.23
+pycountry==20.7.3
 
 # Markup: Markdown filter for POOTLE_MARKUP_FILTER
-bleach==2.1.3
-Markdown==2.6.11
+bleach==4.0.0
+Markdown==3.3.4
 
 # Translate Toolkit
 # Note: also adjust pootle/checks::TTK_MINIMUM_REQUIRED_VERSION
-translate-toolkit==2.3.0
+translate-toolkit==3.4.0
 # If you want to use Translate Toolkit 'master'
 #-e git+https://github.com/translate/translate.git#egg=translate-toolkit-2.2.5
diff --git a/requirements/deploy.txt b/requirements/deploy.txt
index aae4abb99ce..02e6380142b 100644
--- a/requirements/deploy.txt
+++ b/requirements/deploy.txt
@@ -9,4 +9,4 @@
 # -r _db_postgresql.txt
 
 # Logging
-raven==6.6.0
+raven==6.10.0
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 2ec5c73acbd..f3fb5b3a25a 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -5,6 +5,6 @@
 -r _docs.txt
 -r _lint.txt
 
-django-extensions==2.0.6
+django-extensions==3.1.3
 glue==0.13
-ipython==5.6.0  # rq.filter: <6.0.0
+ipython==5.10.0  # rq.filter: <6.0.0
diff --git a/requirements/host.txt b/requirements/host.txt
index 50b8f9dd06f..aafc1f97b85 100644
--- a/requirements/host.txt
+++ b/requirements/host.txt
@@ -1,2 +1,2 @@
-makeyfile
-docker-compose
+makeyfile==0.0.2
+docker-compose==1.29.2
diff --git a/requirements/tests.txt b/requirements/tests.txt
index d26ceb0ef21..e2feb615c5f 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -1,8 +1,8 @@
 # Testing
 
-factory-boy==2.10.0
-pytest==3.3.0
-pytest-cov==2.5.1
-pytest-django==3.1.2
+factory-boy==3.2.0
+pytest==6.2.4
+pytest-cov==2.12.1
+pytest-django==4.4.0
 
 pytest-mock
diff --git a/requirements/travis.txt b/requirements/travis.txt
index eed04888069..4fd83ce1c4b 100644
--- a/requirements/travis.txt
+++ b/requirements/travis.txt
@@ -4,7 +4,7 @@
 -r _docs.txt
 -r _lint.txt
 
-tox==3.0.0
+tox==3.24.2
 
 # Databases
 -r _db_mysql.txt
@@ -14,6 +14,6 @@ tox==3.0.0
 -r _es_5.txt
 
 # Test coverage
-codecov==2.0.15
-coverage==4.5.1
-coveralls==1.3.0
+codecov==2.1.12
+coverage==5.5
+coveralls==3.2.0