diff --git a/.kokoro/docker/docs/requirements.txt b/.kokoro/docker/docs/requirements.txt
index e71cba8..76ae9ac 100644
--- a/.kokoro/docker/docs/requirements.txt
+++ b/.kokoro/docker/docs/requirements.txt
@@ -16,9 +16,9 @@ distlib==0.3.8 \
     --hash=sha256:034db59a0b96f8ca18035f36290806a9a6e6bd9d1ff91e45a7f172eb17e51784 \
     --hash=sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64
     # via virtualenv
-filelock==3.20.1 \
-    --hash=sha256:15d9e9a67306188a44baa72f569d2bfd803076269365fdea0934385da4dc361a \
-    --hash=sha256:b8360948b351b80f420878d8516519a2204b07aefcdcfd24912a5d33127f188c
+filelock==3.20.3 \
+    --hash=sha256:18c57ee915c7ec61cff0ecf7f0f869936c7c30191bb0cf406f1341778d0834e1 \
+    --hash=sha256:4b0dda527ee31078689fc205ec4f1c1bf7d56cf88b6dc9426c4f230e46c2dce1
     # via virtualenv
 nox==2024.4.15 \
     --hash=sha256:6492236efa15a460ecb98e7b67562a28b70da006ab0be164e8821177577c0565 \