diff --git a/poetry.lock b/poetry.lock
index 8406cec..0529322 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -207,7 +207,7 @@ pyparsing = {version = ">=2.4.2,<3.0.0 || >3.0.0,<3.0.1 || >3.0.1,<3.0.2 || >3.0
 
 [[package]]
 name = "icalendar"
-version = "4.0.9"
+version = "4.1.0"
 description = "iCalendar parser/generator"
 category = "main"
 optional = false
@@ -321,8 +321,8 @@ optional = false
 python-versions = ">=3.6"
 
 [package.extras]
-dev = ["pre-commit", "tox"]
-testing = ["pytest", "pytest-benchmark"]
+testing = ["pytest-benchmark", "pytest"]
+dev = ["tox", "pre-commit"]
 
 [[package]]
 name = "protobuf"
@@ -543,7 +543,7 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "678ce6b44f5998db0a5b0e6b69cee04c12fd8af178d1b8ab4c1372f808f57658"
+content-hash = "a82d3b136aaea41c7540ce331d2a1d4352c7fb67c0d04b370e905d51542f0545"
 
 [metadata.files]
 atomicwrites = [
@@ -631,8 +631,8 @@ httplib2 = [
     {file = "httplib2-0.20.4.tar.gz", hash = "sha256:58a98e45b4b1a48273073f905d2961666ecf0fbac4250ea5b47aef259eb5c585"},
 ]
 icalendar = [
-    {file = "icalendar-4.0.9-py2.py3-none-any.whl", hash = "sha256:cf1446ffdf1b6ad469451a8966cfa7694f5fac796ac6fc7cd93e28c51a637d2c"},
-    {file = "icalendar-4.0.9.tar.gz", hash = "sha256:cc73fa9c848744843046228cb66ea86cd8c18d73a51b140f7c003f760b84a997"},
+    {file = "icalendar-4.1.0-py2.py3-none-any.whl", hash = "sha256:129304fdbad4169acc635d08b658ca22ba449b5b22b5157c3774626bc60072db"},
+    {file = "icalendar-4.1.0.tar.gz", hash = "sha256:9748b7c02efcc43e58d0615ae0976ac4f265e90dadee9b4f884de29905c1b395"},
 ]
 idna = [
     {file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"},
diff --git a/pyproject.toml b/pyproject.toml
index 65cbd5b..24ff2fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ classifiers = [
 python = "^3.8"
 google-auth = "2.9.0"
 google-api-python-client = "2.52.0"
-icalendar = "4.0.9"
+icalendar = "4.1.0"
 pytz = "2022.1"
 PyYAML = "6.0"
 fire = "0.4.0"