diff --git a/poetry.lock b/poetry.lock
index af63f65..444d242 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -727,14 +727,14 @@ six = ">=1.5"
 
 [[package]]
 name = "pytz"
-version = "2022.7.1"
+version = "2023.3"
 description = "World timezone definitions, modern and historical"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "pytz-2022.7.1-py2.py3-none-any.whl", hash = "sha256:78f4f37d8198e0627c5f1143240bb0206b8691d8d7ac6d78fee88b78733f8c4a"},
-    {file = "pytz-2022.7.1.tar.gz", hash = "sha256:01a0681c4b9684a28304615eba55d1ab31ae00bf68ec157ec3708a8182dbbcd0"},
+    {file = "pytz-2023.3-py2.py3-none-any.whl", hash = "sha256:a151b3abb88eda1d4e34a9814df37de2a80e301e68ba0fd856fb9b46bfbbbffb"},
+    {file = "pytz-2023.3.tar.gz", hash = "sha256:1d8ce29db189191fb55338ee6d0387d82ab59f3d00eac103412d64e0ebd0c588"},
 ]
 
 [[package]]
@@ -939,4 +939,4 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "c90ecf8b17753d38659f12014653df10bbfe1e4fa58d66e1d1d5d327711bd962"
+content-hash = "005a6a4b6c5623a9783637a3adfebf0aeb521723548db69aae53a594d92e977a"
diff --git a/pyproject.toml b/pyproject.toml
index 9890d33..39d2956 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ python = "^3.8"
 google-auth = "2.16.1"
 google-api-python-client = "2.79.0"
 icalendar = "5.0.4"
-pytz = "2022.7.1"
+pytz = "2023.3"
 PyYAML = "6.0"
 fire = "0.5.0"