diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4b695851069d4bd4fd44a42774a4ff2abe8f7278..0c82f9217696e1eeabac3ac573bc2dfbf877bed1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ image: rocker/tidyverse
 
 before_script:
   - apt-get update
-  - apt-get install -y --no-install-recommends libcurl4-openssl-dev libxext-dev lib32-libxext
+  - apt-get install -y --no-install-recommends libcurl4-openssl-dev libxext6
   - apt-get install -y --no-install-recommends qpdf pandoc pandoc-citeproc
   - R -e 'install.packages(c("testthat", "rmarkdown"));'
   - R -e "install.packages(c('parallel', 'data.table', 'ggplot2', 'gridExtra', 'glmmTMB', 'magrittr', 'MASS', 'reshape2', 'rlang', 'stats', 'utils', 'BiocManager', 'car'))"