diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 52d952f765144a8f7f0bb5b12f66c8372851f82e..725c6d69304b343c4e38b22cf4ca67d26514550e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ default:
   tags: [docker]
   image: r-base:latest
   before_script:
-    - Rscript -e 'install.packages(c("remotes", "dplyr", "knitr", "readr"))'
+    - Rscript -e 'install.packages(c("remotes", "dplyr", "knitr", "readr", "lubridate"))'
     - Rscript -e 'remotes::install_gitlab("HYCAR-Hydro/airgr@sd", host = "gitlab.irstea.fr")'
     - R CMD build ../griwrm