diff --git a/roles/codimd/tasks/0_apt_dependencies.yml b/roles/codimd/tasks/0_apt_dependencies.yml
index c7921ba..70b3fb1 100644
--- a/roles/codimd/tasks/0_apt_dependencies.yml
+++ b/roles/codimd/tasks/0_apt_dependencies.yml
@@ -18,3 +18,4 @@
     - nodejs
     - npm
     - build-essential
+    - zlib1g-dev  # uws module