diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index bee85247d..6329ce508 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -6,7 +6,7 @@ permissions:
   contents: read
 
 env:
-  DOXYGEN_VERSION: 1.13.0
+  DOXYGEN_VERSION: 1.13.1
 
 jobs:
   generate:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8f1ca1cd..afc46603b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@
 ### Changed
 
 - Return `quint32` from all `maxValue` methods, instead of `QVariant` ([db8b841][])
-- Upgrade to Doxygen 1.13.0.
+- Upgrade to Doxygen 1.13.1.
 - Upgrade to Qt 6.8.1, and 6.9.0 beta.
 
 ## [0.5.3][] (2024-12-23)
diff --git a/doc/doxyfile.in b/doc/doxyfile.in
index 0d93ba865..f9870f42d 100644
--- a/doc/doxyfile.in
+++ b/doc/doxyfile.in
@@ -1,4 +1,4 @@
-# Doxyfile 1.13.0
+# Doxyfile 1.13.1
 
 # This file describes the settings to be used by the documentation system
 # Doxygen (www.doxygen.org) for a project.
@@ -928,6 +928,14 @@ WARN_NO_PARAMDOC       = NO
 
 WARN_IF_UNDOC_ENUM_VAL = YES
 
+# If WARN_LAYOUT_FILE option is set to YES, Doxygen will warn about issues found
+# while parsing the user defined layout file, such as missing or wrong elements.
+# See also LAYOUT_FILE for details. If set to NO, problems with the layout file
+# will be suppressed.
+# The default value is: YES.
+
+WARN_LAYOUT_FILE       = YES
+
 # If the WARN_AS_ERROR tag is set to YES then Doxygen will immediately stop when
 # a warning is encountered. If the WARN_AS_ERROR tag is set to FAIL_ON_WARNINGS
 # then Doxygen will continue running as if WARN_AS_ERROR tag is set to NO, but