diff --git a/acme/setup.py b/acme/setup.py
index ee2d225e8..8026f7f81 100644
--- a/acme/setup.py
+++ b/acme/setup.py
@@ -3,7 +3,7 @@ from setuptools import find_packages
 from setuptools.command.test import test as TestCommand
 import sys
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Please update tox.ini when modifying dependency version requirements
 install_requires = [
diff --git a/certbot-apache/setup.py b/certbot-apache/setup.py
index 9d22bacff..9cf242a34 100644
--- a/certbot-apache/setup.py
+++ b/certbot-apache/setup.py
@@ -4,7 +4,7 @@ from setuptools.command.test import test as TestCommand
 import sys
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-compatibility-test/setup.py b/certbot-compatibility-test/setup.py
index e7f4880f1..7aec1fe43 100644
--- a/certbot-compatibility-test/setup.py
+++ b/certbot-compatibility-test/setup.py
@@ -4,7 +4,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 install_requires = [
     'certbot',
diff --git a/certbot-dns-cloudflare/setup.py b/certbot-dns-cloudflare/setup.py
index 1855428d2..236edcb5d 100644
--- a/certbot-dns-cloudflare/setup.py
+++ b/certbot-dns-cloudflare/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-cloudxns/setup.py b/certbot-dns-cloudxns/setup.py
index e642d406a..ba115a140 100644
--- a/certbot-dns-cloudxns/setup.py
+++ b/certbot-dns-cloudxns/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-digitalocean/setup.py b/certbot-dns-digitalocean/setup.py
index c6fbc9a0c..a6e81d060 100644
--- a/certbot-dns-digitalocean/setup.py
+++ b/certbot-dns-digitalocean/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-dnsimple/setup.py b/certbot-dns-dnsimple/setup.py
index a62afa912..a6410f234 100644
--- a/certbot-dns-dnsimple/setup.py
+++ b/certbot-dns-dnsimple/setup.py
@@ -3,7 +3,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-dnsmadeeasy/setup.py b/certbot-dns-dnsmadeeasy/setup.py
index cf35a0427..f3ec4de88 100644
--- a/certbot-dns-dnsmadeeasy/setup.py
+++ b/certbot-dns-dnsmadeeasy/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-gehirn/setup.py b/certbot-dns-gehirn/setup.py
index 06399cace..95710290f 100644
--- a/certbot-dns-gehirn/setup.py
+++ b/certbot-dns-gehirn/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Please update tox.ini when modifying dependency version requirements
 install_requires = [
diff --git a/certbot-dns-google/setup.py b/certbot-dns-google/setup.py
index 37903034d..db1953ac7 100644
--- a/certbot-dns-google/setup.py
+++ b/certbot-dns-google/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-linode/setup.py b/certbot-dns-linode/setup.py
index 11c0d577f..3f7a48e98 100644
--- a/certbot-dns-linode/setup.py
+++ b/certbot-dns-linode/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 from setuptools import find_packages
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Please update tox.ini when modifying dependency version requirements
 install_requires = [
diff --git a/certbot-dns-luadns/setup.py b/certbot-dns-luadns/setup.py
index 2bf62d4a0..01e25e3f2 100644
--- a/certbot-dns-luadns/setup.py
+++ b/certbot-dns-luadns/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-nsone/setup.py b/certbot-dns-nsone/setup.py
index 7ed20ad8a..475e943dc 100644
--- a/certbot-dns-nsone/setup.py
+++ b/certbot-dns-nsone/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-ovh/setup.py b/certbot-dns-ovh/setup.py
index 849cbc548..5dab97c86 100644
--- a/certbot-dns-ovh/setup.py
+++ b/certbot-dns-ovh/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-rfc2136/setup.py b/certbot-dns-rfc2136/setup.py
index d03c7cc0c..84d24257e 100644
--- a/certbot-dns-rfc2136/setup.py
+++ b/certbot-dns-rfc2136/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-route53/setup.py b/certbot-dns-route53/setup.py
index 0f097f977..57e3930a5 100644
--- a/certbot-dns-route53/setup.py
+++ b/certbot-dns-route53/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 from setuptools import find_packages
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot-dns-sakuracloud/setup.py b/certbot-dns-sakuracloud/setup.py
index 9d2b0f901..6e4559639 100644
--- a/certbot-dns-sakuracloud/setup.py
+++ b/certbot-dns-sakuracloud/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 from setuptools import find_packages
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Please update tox.ini when modifying dependency version requirements
 install_requires = [
diff --git a/certbot-nginx/setup.py b/certbot-nginx/setup.py
index b53e16659..a7b3b4ea7 100644
--- a/certbot-nginx/setup.py
+++ b/certbot-nginx/setup.py
@@ -4,7 +4,7 @@ from setuptools.command.test import test as TestCommand
 import sys
 
 
-version = '0.40.0'
+version = '0.41.0.dev0'
 
 # Remember to update local-oldest-requirements.txt when changing the minimum
 # acme/certbot version.
diff --git a/certbot/__init__.py b/certbot/__init__.py
index ca79e552f..a3899a31b 100644
--- a/certbot/__init__.py
+++ b/certbot/__init__.py
@@ -1,4 +1,4 @@
 """Certbot client."""
 
 # version number like 1.2.3a0, must have at least 2 parts, like 1.2
-__version__ = '0.40.0'
+__version__ = '0.41.0.dev0'
diff --git a/letsencrypt-auto-source/letsencrypt-auto b/letsencrypt-auto-source/letsencrypt-auto
index 5df7f5f30..2c4d5d171 100755
--- a/letsencrypt-auto-source/letsencrypt-auto
+++ b/letsencrypt-auto-source/letsencrypt-auto
@@ -31,7 +31,7 @@ if [ -z "$VENV_PATH" ]; then
 fi
 VENV_BIN="$VENV_PATH/bin"
 BOOTSTRAP_VERSION_PATH="$VENV_PATH/certbot-auto-bootstrap-version.txt"
-LE_AUTO_VERSION="0.40.0"
+LE_AUTO_VERSION="0.41.0.dev0"
 BASENAME=$(basename $0)
 USAGE="Usage: $BASENAME [OPTIONS]
 A self-updating wrapper script for the Certbot ACME client. When run, updates