diff --git a/composer.json b/composer.json
index 723d04be..2f11a886 100644
--- a/composer.json
+++ b/composer.json
@@ -3,15 +3,15 @@
   "description": "HumHub calendar module",
   "type": "library",
   "require": {
-    "sabre/vobject": "4.2.1",
+    "sabre/vobject": "^4",
     "simshaun/recurr": "^4",
-    "sabre/xml": "1.5.1",
-    "sabre/uri": "1.2.1"
+    "sabre/xml": "^2",
+    "sabre/uri": "^2"
   },
   "config": {
     "process-timeout": 1800,
     "platform": {
-      "php": "5.6"
+      "php": "7.4"
     }
   },
   "repositories": [
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 3a93cd82..73470faf 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -4,6 +4,7 @@ Changelog
 1.4.0-beta.2  (Unreleased)
 --------------------------
 - Enh #341: Don't invite disabled users
+- Fix #345: Fix event creating on PHP 8.1+
 
 
 1.4.0-beta.1  (November 7, 2022)