diff --git a/smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-base.txt b/smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-base.txt
index 5a63606..93af13b 100644
--- a/smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-base.txt
+++ b/smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-base.txt
@@ -1,6 +1,6 @@
 # These are base requirements needed for any sphinx project output.
 Sphinx==8.2.3
-sphinx_inline_tabs==2023.4.21
+sphinx_inline_tabs==2025.12.21.14
 sphinx-copybutton==0.5.2
 Pygments==2.19.2
 sphinx-design==0.6.1