diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5efcaab4..18a95b8a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -36,7 +36,7 @@ jobs:
             - v1-SRB2-APT
       - run:
           name: Install SDK
-          command: apt-get -qq -y install git build-essential nasm libpng12-dev:i386 libsdl2-mixer-dev:i386 libgme-dev:i386 gettext ccache wget gcc-multilib
+          command: apt-get -qq -y install git build-essential nasm libpng12-dev:i386 libsdl2-mixer-dev:i386 libgme-dev:i386 gettext ccache wget gcc-multilib upx
       - save_cache:
           key: v1-SRB2-APT
           paths: