diff --git a/.github/workflows/cache_libs.yml b/.github/workflows/cache_libs.yml
index 77c8335..72d7da4 100644
--- a/.github/workflows/cache_libs.yml
+++ b/.github/workflows/cache_libs.yml
@@ -20,7 +20,7 @@ on:
         required: false
         type: string
       XMLSEC1_VERSION:
-        default: "1.3.9"
+        default: "1.3.10-rc1"
         required: false
         type: string
       ZLIB_VERSION:
diff --git a/build_support/lib_xmlsec_dependency_builder.py b/build_support/lib_xmlsec_dependency_builder.py
index 00b519d..7818615 100644
--- a/build_support/lib_xmlsec_dependency_builder.py
+++ b/build_support/lib_xmlsec_dependency_builder.py
@@ -49,7 +49,7 @@ class LibXmlsecDependencyBuilder:
         'libxml2_version': '2.14.6',  # Make sure it matches with lxml
         'libxslt_version': '1.1.43',
         'openssl_version': '3.6.0',
-        'xmlsec1_version': '1.3.9',
+        'xmlsec1_version': '1.3.10-rc1',
         'zlib_version': '1.3.1',
     }
     WINDOWS_DEFAULT_LIB_VERSIONS: ClassVar[dict[str, str]] = {