diff --git a/acme/acme/__init__.py b/acme/acme/__init__.py
index 8b6ce88c0..b4cbf5e45 100644
--- a/acme/acme/__init__.py
+++ b/acme/acme/__init__.py
@@ -6,6 +6,7 @@ This module is an implementation of the `ACME protocol`_.
 
 """
 import sys
+import warnings
 
 # This code exists to keep backwards compatibility with people using acme.jose
 # before it became the standalone josepy package.
@@ -19,3 +20,11 @@ for mod in list(sys.modules):
     # preserved (acme.jose.* is josepy.*)
     if mod == 'josepy' or mod.startswith('josepy.'):
         sys.modules['acme.' + mod.replace('josepy', 'jose', 1)] = sys.modules[mod]
+
+
+if sys.version_info[:2] == (3, 6):
+    warnings.warn(
+            "Python 3.6 support will be dropped in the next release of "
+            "acme. Please upgrade your Python version.",
+            PendingDeprecationWarning,
+    )  # pragma: no cover
diff --git a/certbot/CHANGELOG.md b/certbot/CHANGELOG.md
index b43154db7..1ac183409 100644
--- a/certbot/CHANGELOG.md
+++ b/certbot/CHANGELOG.md
@@ -9,6 +9,8 @@ Certbot adheres to [Semantic Versioning](https://semver.org/).
 * Added `show_account` subcommand, which will fetch the account information
   from the ACME server and show the account details (account URL and, if
   applicable, email address or addresses)
+* We deprecated support for Python 3.6 in Certbot and its ACME library.
+  Support for Python 3.6 will be removed in the next major release of Certbot.
 
 ### Changed
 
diff --git a/certbot/certbot/__init__.py b/certbot/certbot/__init__.py
index 3f9e235bd..fe0a2a416 100644
--- a/certbot/certbot/__init__.py
+++ b/certbot/certbot/__init__.py
@@ -1,3 +1,13 @@
 """Certbot client."""
 # version number like 1.2.3a0, must have at least 2 parts, like 1.2
+import sys
+import warnings
+
 __version__ = '1.23.0.dev0'
+
+if sys.version_info[:2] == (3, 6):
+    warnings.warn(
+            "Python 3.6 support will be dropped in the next release of "
+            "certbot. Please upgrade your Python version.",
+            PendingDeprecationWarning,
+    )  # pragma: no cover
diff --git a/certbot/certbot/_internal/main.py b/certbot/certbot/_internal/main.py
index 15a7239f6..f4062efaa 100644
--- a/certbot/certbot/_internal/main.py
+++ b/certbot/certbot/_internal/main.py
@@ -1673,6 +1673,10 @@ def main(cli_args: List[str] = None) -> Optional[Union[str, int]]:
     zope.component.provideUtility(report, interfaces.IReporter)
     util.atexit_register(report.print_messages)
 
+    if sys.version_info[:2] == (3, 6):
+        logger.warning("Python 3.6 support will be dropped in the next release "
+                       "of Certbot - please upgrade your Python version.")
+
     with make_displayer(config) as displayer:
         display_obj.set_display(displayer)
 
diff --git a/pytest.ini b/pytest.ini
index 92a403451..ea1593808 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -27,6 +27,8 @@
 # 7) botocore's default TLS settings raise deprecation warnings in Python
 #    3.10+, but their values are sane from a security perspective. See
 #    https://github.com/boto/botocore/issues/2550.
+# 8) Ignore our own PendingDeprecationWarning about Python 3.6 soon to be dropped.
+#    See https://github.com/certbot/certbot/pull/9160.
 filterwarnings =
     error
     ignore:The external mock module:PendingDeprecationWarning
@@ -36,3 +38,4 @@ filterwarnings =
     ignore:decodestring\(\) is a deprecated alias:DeprecationWarning:dns
     ignore:_SixMetaPathImporter.:ImportWarning
     ignore:ssl.PROTOCOL_TLS:DeprecationWarning:botocore
+    ignore:Python 3.6 support will be dropped:PendingDeprecationWarning