diff --git a/Dockerfile b/Dockerfile
index 825408f..76147f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,12 @@ RUN apt install -yqq php8.3-cli php8.3-common php8.3-curl php8.3-imagick php8.3-
 # install nodeJS
 RUN apt install -yqq nodejs npm
 
+# install yarn
+RUN curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | tee /usr/share/keyrings/yarnkey.gpg >/dev/null
+RUN sh -c 'echo "deb [signed-by=/usr/share/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" > /etc/apt/sources.list.d/yarn.list'
+RUN apt update
+RUN apt install -yqq yarn
+
 # install git
 RUN apt install -yqq git