diff --git a/Dockerfile b/Dockerfile
index b735768..3376cc5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,14 @@
 FROM tensorflow/tensorflow:2.18.0
-RUN apt-get update --allow-insecure-repositories
-RUN apt-get -y --allow-unauthenticated install ffmpeg aria2 wget nano git
+RUN apt-get update
+RUN apt-get -y install ffmpeg aria2 wget nano git
 WORKDIR /inaseg
 RUN git clone https://github.com/lovegaoshi/inaSpeechSegmenter.git
 RUN cd inaSpeechSegmenter; pip install .
 RUN pip3 install pandas==2.0.0
 COPY ./requirements.txt /inaseg/requirements.txt
 RUN pip3 install -r /inaseg/requirements.txt
-# fix numpy to be 1.23.0; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
-RUN pip3 install numpy==1.23.0
+# fix numpy to be 1.26; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
+RUN pip3 install numpy==1.26.3
 RUN pip3 install --force-reinstall git+https://github.com/grqz/yt-dlp.git@ie/bilibili/pi_fallbk
 RUN wget https://getsamplefiles.com/download/mp3/sample-1.mp3 -P /home
 COPY . /inaseg
diff --git a/Dockerfile-aarch64 b/Dockerfile-aarch64
index 41ead34..9085097 100644
--- a/Dockerfile-aarch64
+++ b/Dockerfile-aarch64
@@ -1,15 +1,16 @@
 FROM armswdev/tensorflow-arm-neoverse:r24.07-tf-2.16.1-eigen
 RUN sudo groupmod -g 1001 ubuntu
 RUN sudo usermod -u 1001 -g 1001 ubuntu
+# something's weird about this image; dunno how to fix
 RUN sudo apt-get update --allow-insecure-repositories
 RUN sudo apt-get -y --allow-unauthenticated install ffmpeg aria2 wget nano git
 WORKDIR /inaseg
 RUN git clone https://github.com/lovegaoshi/inaSpeechSegmenter.git
 RUN cd inaSpeechSegmenter; pip install .
 COPY ./requirements.txt /inaseg/requirements.txt
-# fix numpy to be 1.23.0; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
-RUN pip3 install numpy==1.23.0
 RUN pip3 install -r /inaseg/requirements.txt
+# fix numpy to be 1.26; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
+RUN pip3 install numpy==1.26.3
 RUN pip3 install --force-reinstall git+https://github.com/grqz/yt-dlp.git@ie/bilibili/pi_fallbk
 COPY . /inaseg
 RUN python3 /inaseg/biliupinit.py --system aarch64-linux.tar.xz --sudocp
\ No newline at end of file
diff --git a/Dockerfile-gpu b/Dockerfile-gpu
index 6da8a34..fe7b259 100644
--- a/Dockerfile-gpu
+++ b/Dockerfile-gpu
@@ -1,14 +1,14 @@
 FROM tensorflow/tensorflow:2.18.0-gpu
-RUN apt-get update --allow-insecure-repositories
-RUN apt-get -y --allow-unauthenticated install ffmpeg aria2 wget nano git
+RUN apt-get update
+RUN apt-get -y install ffmpeg aria2 wget nano git
 WORKDIR /inaseg
 RUN git clone https://github.com/lovegaoshi/inaSpeechSegmenter.git
 RUN cd inaSpeechSegmenter; pip install .
 RUN pip3 install pandas==2.0.0
 COPY ./requirements.txt /inaseg/requirements.txt
 RUN pip3 install -r /inaseg/requirements.txt
-# fix numpy to be 1.23.0; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
-RUN pip3 install numpy==1.23.0
+# fix numpy to be 1.26; inaspeechsegmenter uses a deprecated feature that breaks on numpy > 2
+RUN pip3 install numpy==1.26.3
 RUN pip3 install --force-reinstall git+https://github.com/grqz/yt-dlp.git@ie/bilibili/pi_fallbk
 RUN wget https://getsamplefiles.com/download/mp3/sample-1.mp3 -P /home
 COPY . /inaseg