diff --git a/tools/base/requirements.txt b/tools/base/requirements.txt
index 766da25098f14..20058b910ce60 100644
--- a/tools/base/requirements.txt
+++ b/tools/base/requirements.txt
@@ -1206,14 +1206,15 @@ snowballstemmer==2.2.0 \
     --hash=sha256:09b16deb8547d3412ad7b590689584cd0fe25ec8db3be37788be3810cbf19cb1 \
     --hash=sha256:c8e1716e83cc398ae16824e5572ae04e0d9fc2c6b985fb0f900f5f0c96ecba1a
     # via sphinx
-sphinx==7.2.2 \
-    --hash=sha256:1c0abe6d4de7a6b2c2b109a2e18387bf27b240742e1b34ea42ac3ed2ac99978c \
-    --hash=sha256:ed33bc597dd8f05cd37118f64cbac0b8bf773389a628ddfe95ab9e915c9308dc
+sphinx==7.2.5 \
+    --hash=sha256:1a9290001b75c497fd087e92b0334f1bbfa1a1ae7fddc084990c4b7bd1130b88 \
+    --hash=sha256:9269f9ed2821c9ebd30e4204f5c2339f5d4980e377bc89cb2cb6f9b17409c20a
     # via
     #   -r requirements.in
     #   envoy-docs-sphinx-runner
     #   sphinx-copybutton
     #   sphinxcontrib-httpdomain
+    #   sphinxcontrib-serializinghtml
     #   sphinxext-rediraffe
 sphinx-copybutton==0.5.2 \
     --hash=sha256:4cf17c82fb9646d1bc9ca92ac280813a3b605d8c421225fd9913154103ee1fbd \
@@ -1248,9 +1249,9 @@ sphinxcontrib-qthelp==1.0.3 \
     --hash=sha256:4c33767ee058b70dba89a6fc5c1892c0d57a54be67ddd3e7875a18d14cba5a72 \
     --hash=sha256:bd9fc24bcb748a8d51fd4ecaade681350aa63009a347a8c14e637895444dfab6
     # via sphinx
-sphinxcontrib-serializinghtml==1.1.5 \
-    --hash=sha256:352a9a00ae864471d3a7ead8d7d79f5fc0b57e8b3f95e9867eb9eb28999b92fd \
-    --hash=sha256:aa5f6de5dfdf809ef505c4895e51ef5c9eac17d0f287933eb49ec495280b6952
+sphinxcontrib-serializinghtml==1.1.9 \
+    --hash=sha256:0c64ff898339e1fac29abd2bf5f11078f3ec413cfe9c046d3120d7ca65530b54 \
+    --hash=sha256:9b36e503703ff04f20e9675771df105e58aa029cfcbc23b8ed716019b7416ae1
     # via
     #   envoy-docs-sphinx-runner
     #   sphinx