diff --git a/.github/workflows/update-os.yml b/.github/workflows/update-os.yml
index 3f0e660..269aa89 100644
--- a/.github/workflows/update-os.yml
+++ b/.github/workflows/update-os.yml
@@ -47,7 +47,7 @@ jobs:
             sudo ln -s /usr/local/bin/python3.12 /usr/bin/python
             
             sudo apt-get install -y python3-pip
-            sudo apt-get install zlib1g libjpeg-dev libatlas-base-dev rustc libopenjp2-7 python3-dev scons libssl-dev python3-venv python3-pip git libfreetype6-dev wkhtmltopdf libopenblas-dev -y
+            sudo apt-get install zlib1g libjpeg-dev libatlas-base-dev rustc libopenjp2-7 python3-dev scons libssl-dev python3-venv python3-pip git libfreetype6-dev wkhtmltopdf libopenblas-dev libtiff5-dev -y
             echo $PWD && ls
             git clone https://github.com/aceinnolab/Inkycal
             cd Inkycal