diff --git a/certbot/CHANGELOG.md b/certbot/CHANGELOG.md
index f8ae6a78d..fe7642cda 100644
--- a/certbot/CHANGELOG.md
+++ b/certbot/CHANGELOG.md
@@ -10,11 +10,18 @@ Certbot adheres to [Semantic Versioning](https://semver.org/).
 
 ### Changed
 
-* certbot-dns-google now depends on google-auth rather than oauth2client
+* When self-validating HTTP-01 challenges using
+  acme.challenges.HTTP01Response.simple_verify, we now assume that the response
+  is composed of only ASCII characters. Previously we were relying on the
+  default behavior of the requests library which tries to guess the encoding of
+  the response which was error prone.
+* `acme`: the `.client.Client` and `.client.BackwardsCompatibleClientV2` classes
+  are now deprecated in favor of `.client.ClientV2`.
 
 ### Fixed
 
-*
+* The Apache authenticator no longer crashes with "Unable to insert label"
+  when encountering a completely empty vhost. This issue affected Certbot 1.17.0.
 
 More details about these changes can be found on our GitHub repo.
 
diff --git a/tools/requirements.txt b/tools/requirements.txt
index 00ee484e2..8370ea0a6 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -12,15 +12,15 @@ appnope==0.1.2; python_version == "3.6" and sys_platform == "darwin" or python_v
 astroid==2.6.2; python_version >= "3.6" and python_version < "4.0"
 atomicwrites==1.4.0; python_version >= "3.6" and python_full_version < "3.0.0" and sys_platform == "win32" or sys_platform == "win32" and python_version >= "3.6" and python_full_version >= "3.4.0"
 attrs==21.2.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
-awscli==1.19.108; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.6.0")
+awscli==1.19.109; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.6.0")
 azure-devops==6.0.0b4; python_version >= "3.6"
 babel==2.9.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.4.0"
 backcall==0.2.0; python_version == "3.6" or python_version >= "3.7"
 bcrypt==3.2.0; python_version >= "3.6"
 beautifulsoup4==4.9.3; python_version >= "3.6" and python_version < "4.0" or python_version >= "3.6"
 bleach==3.3.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.5.0"
-boto3==1.17.108; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
-botocore==1.20.108; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
+boto3==1.17.109; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
+botocore==1.20.109; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 cachecontrol==0.12.6; python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.4.0"
 cached-property==1.5.2; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 cachetools==4.2.2; python_version >= "3.5" and python_version < "4.0" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6")
@@ -53,7 +53,7 @@ entrypoints==0.3; python_version >= "3.6" and python_version < "4.0"
 execnet==1.9.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 fabric==2.6.0; python_version >= "3.6"
 filelock==3.0.12; python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.5.0" or python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.4.0" or python_version >= "3.6" and python_version < "4.0"
-google-api-core==1.30.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
+google-api-core==1.31.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 google-api-python-client==2.12.0; python_version >= "3.6"
 google-auth-httplib2==0.1.0; python_version >= "3.6"
 google-auth==1.32.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
@@ -65,7 +65,7 @@ imagesize==1.2.0; python_version >= "3.6" and python_full_version < "3.0.0" or p
 importlib-metadata==1.7.0; python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_version >= "3.6" and python_version < "3.8" and python_full_version >= "3.5.0"
 importlib-resources==5.2.0; python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.7" or python_version >= "3.6" and python_version < "3.7" and python_full_version >= "3.4.0"
 iniconfig==1.1.1; python_version >= "3.6"
-invoke==1.5.0; python_version >= "3.6"
+invoke==1.6.0; python_version >= "3.6"
 ipdb==0.13.9; python_version >= "3.6"
 ipython-genutils==0.2.0
 ipython==7.16.1; python_version == "3.6"
@@ -91,6 +91,7 @@ msgpack==1.0.2; python_version >= "3.6" and python_full_version < "3.0.0" and py
 msrest==0.6.21; python_version >= "3.6"
 mypy-extensions==0.4.3; python_version >= "3.6"
 mypy==0.812; python_version >= "3.5"
+oauth2client==4.1.3; python_version >= "3.6"
 oauthlib==3.1.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.4.0"
 packaging==20.9; python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.4.0" or python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.4.0" or python_version >= "3.6" and python_full_version >= "3.5.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 paramiko==2.7.2; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_version >= "3.6"
@@ -100,7 +101,7 @@ pathlib2==2.3.6; python_version >= "3.6"
 pexpect==4.8.0; python_version >= "3.6" and python_version < "4.0" or python_version == "3.6" and sys_platform != "win32" or python_version >= "3.7" and sys_platform != "win32"
 pickleshare==0.7.5; python_version == "3.6" or python_version >= "3.7"
 pip==20.2.4; (python_version >= "2.7" and python_full_version < "3.0.0") or (python_full_version >= "3.5.0")
-pkginfo==1.7.0; python_version >= "3.6" and python_version < "4.0" or python_version >= "3.6"
+pkginfo==1.7.1; python_version >= "3.6" and python_version < "4.0" or python_version >= "3.6"
 pluggy==0.13.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_version >= "3.6" and python_full_version >= "3.5.0"
 ply==3.11; python_version >= "3.6"
 poetry-core==1.1.0a5; python_version >= "3.6" and python_version < "4.0"
@@ -109,8 +110,8 @@ prompt-toolkit==3.0.3; python_version == "3.6" or python_version >= "3.7"
 protobuf==3.17.3; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 ptyprocess==0.7.0; python_version >= "3.6" and python_version < "4.0"
 py==1.10.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_version >= "3.6" and python_full_version >= "3.5.0"
-pyasn1-modules==0.2.8; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
-pyasn1==0.4.8; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_version >= "3.5" and python_version < "4" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6")
+pyasn1-modules==0.2.8; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_version >= "3.6"
+pyasn1==0.4.8; python_version >= "3.5" and python_version < "4" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6") or python_version >= "3.6"
 pycparser==2.20; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6"
 pygithub==1.55; python_version >= "3.6"
 pygments==2.9.0; python_version >= "3.6" or python_version == "3.6" or python_version >= "3.7"
@@ -144,12 +145,12 @@ requests-oauthlib==1.3.0; python_version >= "3.6" and python_full_version < "3.0
 requests-toolbelt==0.9.1; python_version >= "3.6" and python_version < "4.0" or python_version >= "3.6" or python_version >= "3.6"
 requests==2.25.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.5.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 rfc3986==1.5.0; python_version >= "3.6"
-rsa==4.7.2; python_version >= "3.5" and python_version < "4" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6")
+rsa==4.7.2; python_version >= "3.5" and python_version < "4" and (python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6") or python_version >= "3.6" and python_version < "4"
 s3transfer==0.4.2; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.6.0" and python_version >= "3.6"
 secretstorage==3.3.1; python_version >= "3.6" and python_version < "4.0" and sys_platform == "linux"
-setuptools==57.1.0; python_version >= "3.6" or python_version >= "3.6" or python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_version == "3.6" or python_version >= "3.7"
+setuptools==57.1.0; python_version >= "3.6" or python_version >= "3.6" or python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_version == "3.6" or python_version >= "3.7"
 shellingham==1.4.0; python_version >= "3.6" and python_version < "4.0"
-six==1.16.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.3.0" or python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_full_version >= "3.3.0" and python_version >= "3.6" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.5.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.3.0" or python_version == "3.6" and python_full_version < "3.0.0" or python_version == "3.6" and python_full_version >= "3.3.0"
+six==1.16.0; python_version >= "2.7" and python_full_version < "3.0.0" or python_full_version >= "3.3.0" or python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.4.0" and python_version >= "3.6" or python_full_version >= "3.5.0" and python_version >= "3.6" or python_full_version >= "3.3.0" and python_version >= "3.6" or python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "4.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.5.0" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.4.0" or python_full_version >= "3.6.0" and python_version >= "3.6" or python_version >= "3.6" and python_version < "4.0" and python_full_version >= "3.3.0" or python_version == "3.6" and python_full_version < "3.0.0" or python_version == "3.6" and python_full_version >= "3.3.0"
 snowballstemmer==2.1.0; python_version >= "3.6"
 soupsieve==2.2.1; python_version >= "3.6"
 sphinx-rtd-theme==0.5.2; python_version >= "3.6"
@@ -180,7 +181,7 @@ wheel==0.36.2; python_version >= "3.6" and python_full_version < "3.0.0" or pyth
 wrapt==1.12.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_version >= "3.6" and python_full_version >= "3.4.0" or python_version >= "3.6" and python_version < "4.0"
 yarg==0.1.9; python_version >= "3.6"
 zipp==3.5.0; python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.8" or python_version >= "3.6" and python_version < "3.8" and python_full_version >= "3.5.0" or python_version >= "3.6" and python_full_version < "3.0.0" and python_version < "3.7" or python_version >= "3.6" and python_version < "3.7" and python_full_version >= "3.4.0"
-zope.component==5.0.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
+zope.component==5.0.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 zope.event==4.5.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 zope.hookable==5.0.1; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"
 zope.interface==5.4.0; python_version >= "3.6" and python_full_version < "3.0.0" or python_full_version >= "3.5.0" and python_version >= "3.6"