diff --git a/homeassistant/components/google/manifest.json b/homeassistant/components/google/manifest.json
index 85c4714432b..c33f78c51c6 100644
--- a/homeassistant/components/google/manifest.json
+++ b/homeassistant/components/google/manifest.json
@@ -7,5 +7,5 @@
   "documentation": "https://www.home-assistant.io/integrations/google",
   "iot_class": "cloud_polling",
   "loggers": ["googleapiclient"],
-  "requirements": ["gcal-sync==6.2.0", "oauth2client==4.1.3", "ical==8.2.0"]
+  "requirements": ["gcal-sync==6.2.0", "oauth2client==4.1.3", "ical==8.3.0"]
 }
diff --git a/homeassistant/components/local_calendar/manifest.json b/homeassistant/components/local_calendar/manifest.json
index 27798d0456c..21a4134a8b6 100644
--- a/homeassistant/components/local_calendar/manifest.json
+++ b/homeassistant/components/local_calendar/manifest.json
@@ -7,5 +7,5 @@
   "documentation": "https://www.home-assistant.io/integrations/local_calendar",
   "iot_class": "local_polling",
   "loggers": ["ical"],
-  "requirements": ["ical==8.2.0"]
+  "requirements": ["ical==8.3.0"]
 }
diff --git a/homeassistant/components/local_todo/manifest.json b/homeassistant/components/local_todo/manifest.json
index c126799c39d..68154f10885 100644
--- a/homeassistant/components/local_todo/manifest.json
+++ b/homeassistant/components/local_todo/manifest.json
@@ -5,5 +5,5 @@
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/local_todo",
   "iot_class": "local_polling",
-  "requirements": ["ical==8.2.0"]
+  "requirements": ["ical==8.3.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 84b448c5508..4c51a1e105d 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1181,7 +1181,7 @@ ibmiotf==0.3.4
 # homeassistant.components.google
 # homeassistant.components.local_calendar
 # homeassistant.components.local_todo
-ical==8.2.0
+ical==8.3.0
 
 # homeassistant.components.caldav
 icalendar==6.1.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 653d8c3f500..e0a15bf3b56 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1001,7 +1001,7 @@ ibeacon-ble==1.2.0
 # homeassistant.components.google
 # homeassistant.components.local_calendar
 # homeassistant.components.local_todo
-ical==8.2.0
+ical==8.3.0
 
 # homeassistant.components.caldav
 icalendar==6.1.0
diff --git a/tests/components/local_calendar/snapshots/test_diagnostics.ambr b/tests/components/local_calendar/snapshots/test_diagnostics.ambr
index a70b9d7438b..14dc94ef919 100644
--- a/tests/components/local_calendar/snapshots/test_diagnostics.ambr
+++ b/tests/components/local_calendar/snapshots/test_diagnostics.ambr
@@ -6,12 +6,12 @@
       PRODID:-//homeassistant.io//local_calendar 1.0//EN
       VERSION:***
       BEGIN:VEVENT
-      DTSTAMP:20230313T190500
+      DTSTAMP:20230313T190500Z
       UID:***
       DTSTART:19970714T110000
       DTEND:19970714T220000
       SUMMARY:***
-      CREATED:20230313T190500
+      CREATED:20230313T190500Z
       RRULE:FREQ=DAILY
       SEQUENCE:***
       END:VEVENT