diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e906ad7a0b43d84ac4093946f2ed60643fba126d_LmdpdGxhYi1jaS55bWw=..4ab8ed959947d75494dd24bf872b87ab172b975d_LmdpdGxhYi1jaS55bWw= 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,7 +27,8 @@
 gcc:python3:
   extends: .test
   variables:
-    CFLAGS: "-O2"
+    # TODO: Re-enable the warning after libxml2 #208 is fixed.
+    CFLAGS: "-O2 -Wno-error=deprecated-declarations"
     PYTHON: "/usr/bin/python3"
 
 gcc:static: