diff --git a/constraints.txt b/constraints.txt
index 91382cc3..20e9a025 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -1,5 +1,5 @@
 anyascii==0.3.1
-asgiref==3.4.1
+asgiref==3.5.1
 awscli==1.19.112
 beautifulsoup4==4.9.3
 bleach==3.3.1
@@ -25,20 +25,18 @@ docutils==0.15.2
 draftjs-exporter==2.1.7
 et-xmlfile==1.1.0
 future==0.18.2
-gunicorn==19.9.0
+gunicorn==20.1.0
 html5lib==1.1
 idna==3.3
-importlib-metadata==4.8.3
-importlib-resources==5.4.0
 jmespath==0.10.0
 l18n==2021.3
 libsass==0.21.0
 Markdown==3.3.6
 mbstrdecoder==1.1.0
-mod-wsgi==4.9.0
+mod-wsgi==4.9.1
 openpyxl==3.0.9
 packaging==21.3
-Pillow==8.4.0
+Pillow==9.1.0
 psycopg2-binary==2.9.3
 pyasn1==0.4.8
 Pygments==2.12.0
@@ -54,12 +52,11 @@ s3transfer==0.4.2
 six==1.16.0
 soupsieve==2.3.2.post1
 sqlparse==0.4.2
-tablib==3.1.0
+tablib==3.2.1
 telepath==0.2
 tqdm==4.64.0
 typed-environment-configuration==0.1.4
 typepy==0.2.5
-typing_extensions==4.1.1
 urllib3==1.26.9
 wagtail==2.15.5
 wagtail-markdown==0.8.0
@@ -69,4 +66,3 @@ Willow==1.4.1
 xlrd==2.0.1
 XlsxWriter==3.0.3
 xlwt==1.3.0
-zipp==3.6.0
diff --git a/docker/Dockerfile b/docker/Dockerfile
index f03c54b6..fc0f6761 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -28,7 +28,7 @@ CMD ["yarn", "start"]
 FROM springload/ssm-parent:1.4.1 as ssm-parent
 
 # Base backend
-FROM python:3.6-alpine as base
+FROM python:3.10-alpine as base
 ENV PYCURL_SSL_LIBRARY openssl
 
 RUN apk update && apk add postgresql-libs postgresql-client libevent libjpeg openjpeg zlib
diff --git a/docker/constraints.txt b/docker/constraints.txt
index 470bf60c..9d41f264 100644
--- a/docker/constraints.txt
+++ b/docker/constraints.txt
@@ -1 +1 @@
-gunicorn==19.9.0
+gunicorn==20.1.0
diff --git a/docker/requirements.txt b/docker/requirements.txt
index f3c6741a..8e9871db 100644
--- a/docker/requirements.txt
+++ b/docker/requirements.txt
@@ -1,3 +1,3 @@
 # WebServer
 -c constraints.txt
-gunicorn>=19.9.0,<20.0
+gunicorn>=20.1.0
diff --git a/ietf/utils/__init__.py b/ietf/utils/__init__.py
index 137d5f6f..04f2dab9 100644
--- a/ietf/utils/__init__.py
+++ b/ietf/utils/__init__.py
@@ -1,4 +1,4 @@
-import collections
+from collections import abc as collections
 
 
 class OrderedSet(collections.MutableSet):