diff --git a/Dockerfile b/Dockerfile
index c008bda..26a59fa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,15 +2,21 @@ FROM docker.io/debian:12-slim AS build
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
+        ca-certificates \
+        curl \
         sdkmanager \
         xz-utils \
     && rm -rf /var/lib/apt/lists/*
-ADD https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.27.3-stable.tar.xz /flutter.tar.xz
-RUN tar --no-same-owner -C /opt/ -xJf /flutter.tar.xz
+# https://docs.flutter.dev/release/archive
+RUN curl https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.27.3-stable.tar.xz \
+    | tar --no-same-owner -C /opt/ -xJ
+# https://developer.android.com/tools/releases/build-tools
 RUN sdkmanager \
-        "build-tools;35.0.0" \
+        "build-tools;33.0.1" \
         "cmdline-tools;9.0" \
-        "platform-tools;35.0.2" \
+        "platform-tools" \
+        "platforms;android-33" \
+        "platforms;android-34" \
         "platforms;android-35"
 
 FROM docker.io/debian:12-slim
@@ -26,8 +32,7 @@ RUN apt-get update \
 COPY --from=build /opt/ /opt/
 ENV PATH="/opt/flutter/bin:$PATH"
 RUN flutter config --android-sdk /opt/android-sdk/
-RUN yes | flutter doctor --android-licenses > /dev/null
-RUN flutter update-packages
-RUN flutter precache
+RUN yes | flutter doctor --android-licenses
+RUN flutter precache --android
 WORKDIR /app/
 ENTRYPOINT ["flutter", "--no-version-check"]