diff --git a/Dockerfile b/Dockerfile
index 4c23fed..ebe0d6f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -42,8 +42,6 @@ RUN cd /tmp \
     && cd .. \
     && rm -rf VapourSynth-DCTFilter
 
-RUN apt-get -y install
-
 RUN pip3 --no-cache-dir install \
         matplotlib \
         yuuno 'prompt-toolkit<2.1.0,>=2.0.0' \