diff --git a/mono/defaults/main.yml b/mono/defaults/main.yml
index 41cbae1c..a5738abe 100644
--- a/mono/defaults/main.yml
+++ b/mono/defaults/main.yml
@@ -1,5 +1,5 @@
 ---
-mono_repo_server: 'hkp://keyserver.ubuntu.com'
+mono_repo_server: 'hkp://keyserver.ubuntu.com:80'
 mono_deb_repo_key_id: 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 mono_deb_repo_url: 'deb https://download.mono-project.com/repo/{{ ansible_distribution | lower }} stable-{{ ansible_distribution_release }} main'