diff --git a/ubuntu/Dockerfile b/ubuntu/Dockerfile
index c1d1aed..56ca2df 100644
--- a/ubuntu/Dockerfile
+++ b/ubuntu/Dockerfile
@@ -5,5 +5,5 @@ RUN apt-get -y update && \
   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - && \
   add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable" && \
   apt-get -y install docker-ce && \
-  apt-get install -y curl diffutils jq bash git zsh docker nodejs npm yarn docker
+  apt-get install -y curl diffutils jq bash git zsh docker nodejs npm
 CMD [ "zsh" ]