diff --git a/Dockerfile b/Dockerfile
index dc62f30..fb819d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,10 @@
-FROM alpine:latest
+FROM ubuntu:20.04
 
-RUN apk update \
-    && apk upgrade \
-    && apk add php-cli php7-yaml
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends software-properties-common \
+    && add-apt-repository ppa:ondrej/php && apt-get update \
+    && apt-get install -y --no-install-recommends libyaml-dev php8.1-cli php8.1-yaml
 
 COPY ./generate /generate
 
-ENTRYPOINT ["/usr/bin/php", "/generate" ]
\ No newline at end of file
+#ENTRYPOINT ["/usr/bin/php", "/generate" ]
\ No newline at end of file