diff --git a/requirements.in b/requirements.in
index b490565a..9740f3b8 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,5 +1,5 @@
 pelican[markdown]==4.12.0
-pytz==2026.4
+pytz==2026.5
 ghp-import==2.1.0
 pathspec==1.1.1
 python-dateutil==2.9.0.post0
diff --git a/requirements.txt b/requirements.txt
index 463dfbee..f5b2ce59 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -342,9 +342,9 @@ python-dateutil==2.9.0.post0 \
     #   -r requirements.in
     #   ghp-import
     #   pelican
-pytz==2026.4 \
-    --hash=sha256:464303645bafafd72418898368b2429458f709cf1eb6a15372fbcc396b64da63 \
-    --hash=sha256:9d514388fbc89ca0833203464272ac485b8828568ab73532f5020f17e892a0ff
+pytz==2026.5 \
+    --hash=sha256:e658af3757f9e26a9d25dd2aff38335acd92bc9104f890a894b2c1ba28311b03 \
+    --hash=sha256:fa23724b9c486543b9ff54a327ee7569ac83ade54bb9afd0fc18676620401c86
     # via -r requirements.in
 pyyaml==6.0.3 \
     --hash=sha256:00c4bdeba853cc34e7dd471f16b4114f4162dc03e6b7afcc2128711f0eca823c \