diff --git a/config/software/libxml2.rb b/config/software/libxml2.rb
index e541fbf68..2fab711f6 100644
--- a/config/software/libxml2.rb
+++ b/config/software/libxml2.rb
@@ -15,7 +15,7 @@
 #
 
 name "libxml2"
-default_version "2.11.7"
+default_version "2.13.5"
 
 license "MIT"
 license_file "COPYING"
diff --git a/config/software/libxslt.rb b/config/software/libxslt.rb
index b1b1287d4..a92b8eac7 100644
--- a/config/software/libxslt.rb
+++ b/config/software/libxslt.rb
@@ -66,7 +66,7 @@
     "--without-crypto",
     "--without-profiler",
     "--without-debugger",
-    "--Wno-deprecated-declarations",
+    "--without-deprecated-declarations",
   ]
 
   configure(*configure_commands, env: env)