diff --git a/Dockerfile b/Dockerfile
index be71f10..e8a6183 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,8 @@
-FROM ghcr.io/gleam-lang/gleam:v0.24.0-erlang-alpine
+FROM ghcr.io/gleam-lang/gleam:v0.24.0-erlang-slim
 
-# install packages required to run the tests
-RUN apk add --no-cache jq coreutils
+RUN \
+  apt-get update && \
+  apt-get install -y --no-install-recommends jq
 
 WORKDIR /opt/test-runner
 COPY . .