diff --git a/requirements.in b/requirements.in
index 68724b9a..2bb17fc8 100644
--- a/requirements.in
+++ b/requirements.in
@@ -15,5 +15,5 @@ lxml==4.9.2
 marshmallow==3.19.0
 pydantic==1.10.4
 pyOpenSSL==23.0.0
-pytz==2022.7.1
+pytz==2023.3
 signxml==3.1.0
diff --git a/requirements.txt b/requirements.txt
index 3a9ce64d..ef60b4c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ pyopenssl==23.0.0
     #   signxml
 pyrsistent==0.17.3
     # via jsonschema
-pytz==2022.7.1
+pytz==2023.3
     # via
     #   -r requirements.in
     #   django