diff --git a/CHANGES.md b/CHANGES.md
index 455f30b64..76421bba0 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,10 +1,10 @@
 Changelog
 =========
 
-3.0.0b147 (unreleased)
+3.1.0b1 (unreleased)
 ----------------------
 
-- Nothing changed yet.
+- remove elasticsearch integration
 
 
 3.0.0b146 (2024-10-17)
diff --git a/README.rst b/README.rst
index 4b8e45722..6b145c141 100644
--- a/README.rst
+++ b/README.rst
@@ -28,7 +28,7 @@ In addition to Plone standard features, CastleCMS includes:
 - Advanced content layout editor
 - Improved management toolbar
 - Intuitive content creation and organization
-- Elasticsearch integration
+- Opensearch integration
 - Search results tuned by social media impact
 - Search results pinning
 - Celery task queue integration (asynchronous actions)
@@ -79,20 +79,20 @@ Dependencies
 
 - Redis
 - avconv (needs to be updated for ffmpeg again)
-- ElasticSearch 2.3
+- Opensearch 1.1+
 
 
 Development setup on macOS
 --------------------------
 
-1. ``brew install redis elasticsearch libav python``
+1. ``brew install redis opensearch libav python``
 2. ``git clone git@github.com:castlecms/castle.cms.git``
 3. ``cd castle.cms``
 4. ``virtualenv -p python2.7 .``
 5. ``bin/pip install --upgrade pip``
 6. ``bin/pip install -r requirements.txt``
 7. ``bin/buildout``
-8. Run (in separate terminal windows) ``elasticsearch``, ``redis-server``, ``bin/instance fg``
+8. Run (in separate terminal windows) ``opensearch``, ``redis-server``, ``bin/instance fg``
 9. Browse to http://localhost:8080/
 
 Once you have created a site in the development instance:
@@ -106,7 +106,6 @@ Optional Dependencies
 ---------------------
 
 - Install `argon2_cffi` to use more secure password hashing.
-- https://github.com/castlecms/elasticsearch-castle-scoring
 - https://github.com/castlecms/castlehps for faster search integration
 - Amazon S3 credentials to store large files on S3
 - Google API keys for Google analytics and Recaptcha integrations
@@ -147,7 +146,7 @@ Running local dependencies with docker
 
     or, just the essentials:
     $ docker run -p 6379:6379 redis
-    $ docker run -p 9200:9200 elasticsearch:2.4-alpine
+    $ docker run -p 9200:9200 opensearchproject/opensearch:latest
 
 
 Forks/Custom releases
diff --git a/buildout.cfg b/buildout.cfg
index 5a03d9ad7..7ac634c28 100644
--- a/buildout.cfg
+++ b/buildout.cfg
@@ -10,7 +10,6 @@ auto-checkout =
 [sources]
 plone.app.mosaic = git git@github.com:castlecms/plone.app.mosaic.git branch=castlecms-5.0.x
 collective.celery = git git@github.com:collective/collective.celery.git branch=master
-# collective.elasticsearch = git git@github.com:collective/collective.elasticsearch.git
 collective.documentviewer = git git@github.com:collective/collective.documentviewer.git branch=master
 castle.theme = git git@github.com:castlecms/castle.theme.git branch=master
 collective.easyform = git git@github.com:collective/collective.easyform.git
diff --git a/castle/cms/cron/_social_counts.py b/castle/cms/cron/_social_counts.py
index 19fe2becd..748cfddc4 100644
--- a/castle/cms/cron/_social_counts.py
+++ b/castle/cms/cron/_social_counts.py
@@ -10,7 +10,7 @@
 from AccessControl.SecurityManagement import newSecurityManager
 from Acquisition import aq_parent
 from BTrees.OOBTree import OOBTree
-from castle.cms.indexing.hps import index_in_es
+# from castle.cms.indexing.hps import index_in_es
 from castle.cms.social import COUNT_ANNOTATION_KEY
 from castle.cms.utils import clear_object_cache, retriable
 from plone.app.redirector.interfaces import IRedirectionStorage
@@ -214,7 +214,7 @@ def get_social_counts(site, obj, site_url, count_types, count=0):
 
     transaction.commit()
 
-    index_in_es(obj)
+    # index_in_es(obj)
 
     if count % 200 == 0:
         clear_object_cache(site)
diff --git a/castle/cms/cron/_twitter_monitor.py b/castle/cms/cron/_twitter_monitor.py
index 5a585dde0..8d5948de7 100644
--- a/castle/cms/cron/_twitter_monitor.py
+++ b/castle/cms/cron/_twitter_monitor.py
@@ -1,6 +1,6 @@
 from AccessControl.SecurityManagement import newSecurityManager
 from BTrees.OOBTree import OOBTree
-from castle.cms.indexing.hps import index_in_es
+# from castle.cms.indexing.hps import index_in_es
 from castle.cms.services import twitter
 from castle.cms.social import COUNT_ANNOTATION_KEY
 from castle.cms.utils import retriable
@@ -82,7 +82,9 @@ def parse_line(site, public_url, line):
                 record_tweet_stats(site, ob, tweet)
     if modified:
         transaction.commit()
-        index_in_es()
+        # this method is supposed to get an 'obj' as a parameter, so I'm not confident this
+        # was working before we removed ES
+        # index_in_es()
 
 
 class StreamListener(twitter.StreamListener):
diff --git a/castle/cms/indexing/hps.py b/castle/cms/indexing/hps.py
index f457b3379..6bbeaea9d 100644
--- a/castle/cms/indexing/hps.py
+++ b/castle/cms/indexing/hps.py
@@ -12,8 +12,6 @@
 from wildcard.hps.opensearch import WildcardHPSCatalog
 from zope.component import getMultiAdapter
 from zope.component import getUtility
-from collective.elasticsearch.es import ElasticSearchCatalog
-from collective.elasticsearch.hook import index_batch
 
 
 logger = logging.getLogger("Plone")
@@ -158,13 +156,6 @@ def gen_audit_query(
     return query
 
 
-def index_in_es(obj):
-    catalog = api.portal.get_tool('portal_catalog')
-    es = ElasticSearchCatalog(catalog)
-    if es.enabled:
-        index_batch([], {IUUID(obj): obj}, [], es)
-
-
 def get_index_summary(index_name, terms, agg_agg_terms=None, filter_terms=None):
     query = {
         "size": 0,
diff --git a/castle/cms/interfaces/layers.py b/castle/cms/interfaces/layers.py
index 21cf0b631..9b0c1807e 100644
--- a/castle/cms/interfaces/layers.py
+++ b/castle/cms/interfaces/layers.py
@@ -1,9 +1,3 @@
-# IElasticSearchLayer ensures that if collective.elasticsearch is installed
-# as an addon in a site, that the "search" view is overridden correctly by castle.cms
-# this should be considered deprecated behavior, and will be removed in a
-# future release.
-from collective.elasticsearch.interfaces import IElasticSearchLayer
-
 from plone.app.contenttypes.interfaces import IPloneAppContenttypesLayer
 from plone.app.mosaic.interfaces import IMosaicLayer
 from plone.app.tiles.interfaces import ITilesFormLayer
@@ -17,7 +11,6 @@ class ICastleLayer(
         IMosaicLayer,
         ITilesFormLayer,
         IPloneAppContenttypesLayer,
-        IElasticSearchLayer,  # included to ensure compatibility, see note by import
         IWildcardHPSLayer):
     pass
 
diff --git a/docker-compose.yml b/docker-compose.yml
deleted file mode 100644
index 0df764e67..000000000
--- a/docker-compose.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-
-version: '3'
-services:
-    redis:
-        image: "redis:alpine"
-        ports:
-            - 6379:6379
-    elasticsearch:
-        image: "elasticsearch:7.6.0"
-        ports:
-          - 9200:9200
-        environment:
-          - node.name=es01
-          - discovery.type=single-node
-        networks:
-          - elastic
-    kibana:
-        image: "docker.elastic.co/kibana/kibana:7.6.0"
-        container_name: "kibana"
-        ports:
-          - 5601:5601
-        environment:
-          ELASTICSEARCH_URL: http://elasticsearch:9200
-          ELASTICSEARCH_HOSTS: http://elasticsearch:9200
-        networks:
-          - elastic
-    etherpad:
-        image: "etherpad/etherpad"
-        ports:
-          - 9001:9001
-    mail:
-        image: "mailhog/mailhog"
-        ports:
-          - 1025:1025
-          - 8025:8025
-networks:
-  elastic:
-    driver: bridge
diff --git a/setup.py b/setup.py
index e883e903c..0edc90c73 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ def read(*rnames):
     name='castle.cms',
     description='CastleCMS Plone distribution main package',
     long_description_content_type='text/x-rst',
-    version='3.0.0b147.dev0',
+    version='3.1.0b1.dev0',
     long_description='%s\n%s' % (
         read('README.rst'),
         read('CHANGES.md')
@@ -66,10 +66,6 @@ def read(*rnames):
         'wildcard.hps>=1.4.0',
         'collective.celery>=1.1.4',
 
-        # the use of collective.elasticsearch in the 3.x+ version of castle.cms
-        # is limited and should not be relied on.
-        'collective.elasticsearch >=4.0.0, <5.0.0',
-
         # python
         'boto3>=1.9.222',
         'google-api-python-client >=1.4.2, <2',
diff --git a/versions.cfg b/versions.cfg
index faad16575..8a059c190 100644
--- a/versions.cfg
+++ b/versions.cfg
@@ -49,7 +49,6 @@ Products.ATContentTypes = 2.2.14+wc.1
 
 # addons
 collective.celery = 1.1.4
-collective.elasticsearch = 4.0.0
 collective.documentviewer = 5.0.4
 wildcard.readonly = 1.0
 repoze.catalog = 0.8.3
@@ -66,7 +65,6 @@ anyjson = 0.3.3
 billiard = 3.5.0.4
 cachetools = 2.0.0
 celery = 4.2.1
-elasticsearch = 7.6.0
 kombu = 4.2.1
 urllib3 = 1.25.3
 plone.formwidget.multifile = 1.1