diff --git a/Dockerfile b/Dockerfile
index f3cd0df9..efd32efc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -43,6 +43,7 @@ COPY . /app
 WORKDIR /app
 
 RUN mkdir -p /app/bootstrap/cache \
+    /app/storage/media-library/temp \
     /app/storage/framework/cache \
     /app/storage/framework/views \
     /app/storage/framework/sessions \
@@ -84,8 +85,6 @@ RUN apk add --no-cache xz
 # bring PHP app with vendor
 COPY --from=phpdeps /app /app
 
-# ensure required runtime dirs exist (empty is fine)
-RUN mkdir -p storage/framework/cache storage/framework/views storage/framework/sessions bootstrap/cache
 # create artifact (use tar + xz so we don't depend on GNU tar -J)
 RUN mkdir -p /out \
  && tar -C /app -cf /out/app.tar \
diff --git a/config/media-library.php b/config/media-library.php
index 80fbd870..893ec0fd 100644
--- a/config/media-library.php
+++ b/config/media-library.php
@@ -126,7 +126,7 @@ return [
      * The path where to store temporary files while performing image conversions.
      * If set to null, storage_path('media-library/temp') will be used.
      */
-    'temporary_directory_path' => null,
+    'temporary_directory_path' => env('MEDIA_LIBRARY_TEMP_PATH', storage_path('media-library/temp')),
 
     /*
      * The engine that should perform the image conversions.