diff --git a/Dockerfile b/Dockerfile
index a07eb2e..4c7f525 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,8 @@ LABEL maintainer="thelamer"
 # environment settings
 ARG DEBIAN_FRONTEND="noninteractive"
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
+# https://github.com/dlemstra/Magick.NET/issues/707#issuecomment-785351620
+ENV MALLOC_TRIM_THRESHOLD_=131072
 
 RUN \
   echo "**** install jellyfin *****" && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 51ab356..1a9f078 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -12,6 +12,8 @@ LABEL maintainer="thelamer"
 # environment settings
 ARG DEBIAN_FRONTEND="noninteractive"
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
+# https://github.com/dlemstra/Magick.NET/issues/707#issuecomment-785351620
+ENV MALLOC_TRIM_THRESHOLD_=131072
 
 RUN \
   echo "**** install jellyfin *****" && \