diff --git a/tasks/install_from_repository.yml b/tasks/install_from_repository.yml
index c627bb1..b89701c 100644
--- a/tasks/install_from_repository.yml
+++ b/tasks/install_from_repository.yml
@@ -9,4 +9,5 @@
       - puppetserver
       - r10k
       - acl
+      - eyaml
     update_cache: true
diff --git a/tasks/install_from_source.yml b/tasks/install_from_source.yml
index 6b04800..6facf9f 100644
--- a/tasks/install_from_source.yml
+++ b/tasks/install_from_source.yml
@@ -5,6 +5,7 @@
       - openjdk-8-jre-headless
       - ca-certificates-java
       - leiningen
+      - eyaml
 
 - name: Ensure Puppetserver repository is cloned
   git: