diff --git a/bin/install-builder.sh b/bin/install-builder.sh
index bbd1951..4c03902 100755
--- a/bin/install-builder.sh
+++ b/bin/install-builder.sh
@@ -22,6 +22,7 @@ apt-get install -q -y \
   git \
   libssl-dev \
   libreadline-dev \
+  libyaml-dev \
   zlib1g-dev \
   ;