diff --git a/ietf/settings.py b/ietf/settings.py
index 3fd08ffa4..e7011abf9 100644
--- a/ietf/settings.py
+++ b/ietf/settings.py
@@ -716,13 +716,13 @@ CACHE_MIDDLEWARE_KEY_PREFIX = ''
 # This setting is possibly overridden further down, after the import of settings_local
 CACHES = {
     'default': {
-        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
+        'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache',
         'LOCATION': '127.0.0.1:11211',
         'VERSION': __version__,
         'KEY_PREFIX': 'ietf:dt',
     },
     'sessions': {
-        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
+        'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache',
         'LOCATION': '127.0.0.1:11211',
         # No release-specific VERSION setting.
         'KEY_PREFIX': 'ietf:dt',
diff --git a/requirements.txt b/requirements.txt
index e05b31200..75aca6574 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,7 +56,7 @@ pyquery>=1.4.3
 python-dateutil>=2.8.2
 types-python-dateutil>=2.8.2
 python-magic==0.4.18    # Versions beyond the yanked .19 and .20 introduce form failures
-python-memcached>=1.59    # for django.core.cache.backends.memcached
+pymemcache>=4.0.0  # for django.core.cache.backends.memcached.PyMemcacheCache 
 python-mimeparse>=1.6    # from TastyPie
 pytz==2022.2.1   # Pinned as changes need to be vetted for their effect on Meeting fields
 requests>=2.27.1