diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index 0b4e2c90..8a9c7224 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -3022,6 +3022,12 @@ properties:
                     project monitor. Used along with the data source name URL to
                     construct a cron URL.
                 example: mymonitor
+            environment:
+                type: string
+                description: |
+                    Sentry monitor environment used in the call to sentry. If
+                    not set, the Sentry default is used.
+                example: production
             states:
                 type: array
                 items:
diff --git a/borgmatic/hooks/monitoring/sentry.py b/borgmatic/hooks/monitoring/sentry.py
index e52d61b1..c6ec5856 100644
--- a/borgmatic/hooks/monitoring/sentry.py
+++ b/borgmatic/hooks/monitoring/sentry.py
@@ -1,5 +1,6 @@
 import logging
 import re
+import urllib
 
 import requests
 
@@ -40,6 +41,7 @@ def ping_monitor(hook_config, config, config_filename, state, monitoring_log_lev
     dry_run_label = ' (dry run; not actually pinging)' if dry_run else ''
 
     data_source_name_url = hook_config.get('data_source_name_url')
+    environment = hook_config.get('environment')
     monitor_slug = hook_config.get('monitor_slug')
     match = DATA_SOURCE_NAME_URL_PATTERN.match(data_source_name_url)
 
@@ -65,10 +67,12 @@ def ping_monitor(hook_config, config, config_filename, state, monitoring_log_lev
     if dry_run:
         return
 
+    environment_query = f'&environment={urllib.parse.quote(environment)}' if environment else ''
+
     logging.getLogger('urllib3').setLevel(logging.ERROR)
     try:
         response = requests.post(
-            f'{cron_url}?status={status}',
+            f'{cron_url}?status={status}{environment_query}',
             timeout=TIMEOUT_SECONDS,
             headers={'User-Agent': 'borgmatic'},
         )
diff --git a/docs/reference/configuration/monitoring/sentry.md b/docs/reference/configuration/monitoring/sentry.md
index 8c59c089..09cde442 100644
--- a/docs/reference/configuration/monitoring/sentry.md
+++ b/docs/reference/configuration/monitoring/sentry.md
@@ -26,6 +26,9 @@ sentry:
 The `monitor_slug` value comes from the "Monitor Slug" under "Cron Details" on
 the same Sentry monitor page.
 
+The `environment` value optionally specifies the environment that is used in
+Sentry.
+
 With this configuration, borgmatic pings Sentry whenever borgmatic starts,
 finishes, or fails, but only when any of the `create`, `prune`, `compact`, or
 `check` actions are run. You can optionally override the start/finish/fail
@@ -36,6 +39,7 @@ Sentry on failure:
 sentry:
     data_source_name_url: https://5f80ec@o294220.ingest.us.sentry.io/203069
     monitor_slug: mymonitor
+    environment: myenvironment
     states:
       - fail
 ```
diff --git a/tests/unit/hooks/monitoring/test_sentry.py b/tests/unit/hooks/monitoring/test_sentry.py
index 87f62a1a..f85f8f85 100644
--- a/tests/unit/hooks/monitoring/test_sentry.py
+++ b/tests/unit/hooks/monitoring/test_sentry.py
@@ -6,20 +6,23 @@ from borgmatic.hooks.monitoring import sentry as module
 
 
 @pytest.mark.parametrize(
-    'state,configured_states,expected_status',
+    'state,configured_states,configured_environment,expected_status',
     (
-        (borgmatic.hooks.monitoring.monitor.State.START, ['start'], 'in_progress'),
+        (borgmatic.hooks.monitoring.monitor.State.START, ['start'], None, 'in_progress'),
         (
             borgmatic.hooks.monitoring.monitor.State.START,
             ['start', 'finish', 'fail'],
+            None,
             'in_progress',
         ),
-        (borgmatic.hooks.monitoring.monitor.State.START, None, 'in_progress'),
-        (borgmatic.hooks.monitoring.monitor.State.FINISH, ['finish'], 'ok'),
-        (borgmatic.hooks.monitoring.monitor.State.FAIL, ['fail'], 'error'),
+        (borgmatic.hooks.monitoring.monitor.State.START, None, 'production', 'in_progress'),
+        (borgmatic.hooks.monitoring.monitor.State.FINISH, ['finish'], 'development', 'ok'),
+        (borgmatic.hooks.monitoring.monitor.State.FAIL, ['fail'], 'another-environment', 'error'),
     ),
 )
-def test_ping_monitor_constructs_cron_url_and_pings_it(state, configured_states, expected_status):
+def test_ping_monitor_constructs_cron_url_and_pings_it(
+    state, configured_states, configured_environment, expected_status
+):
     hook_config = {
         'data_source_name_url': 'https://5f80ec@o294220.ingest.us.sentry.io/203069',
         'monitor_slug': 'test',
@@ -28,8 +31,13 @@ def test_ping_monitor_constructs_cron_url_and_pings_it(state, configured_states,
     if configured_states:
         hook_config['states'] = configured_states
 
+    environment_query = ''
+    if configured_environment:
+        hook_config['environment'] = configured_environment
+        environment_query = f'&environment={configured_environment}'
+
     flexmock(module.requests).should_receive('post').with_args(
-        f'https://o294220.ingest.us.sentry.io/api/203069/cron/test/5f80ec/?status={expected_status}',
+        f'https://o294220.ingest.us.sentry.io/api/203069/cron/test/5f80ec/?status={expected_status}{environment_query}',
         timeout=int,
         headers={'User-Agent': 'borgmatic'},
     ).and_return(flexmock(ok=True)).once()