diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 3ff59bd2..70f9348b 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,7 @@ v3.1.1
 *Release date: In development*
 
 - Upgrade Sphinx version from 4.* to 7.* to fix readthedocs theme format
+- Upgrade readthedocs-sphinx-search to 0.3.2 to fix security vulnerability
 - Do not log warning messages when toolium system properties are used
 
 v3.1.0
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 77b8ac80..3a560d62 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 Sphinx~=7.2
 sphinx_rtd_theme~=1.3
-readthedocs-sphinx-search~=0.3
+readthedocs-sphinx-search~=0.3.2