diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1bdfc91b..32dc0799 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,7 +14,7 @@ R 3.3:
     script:
     - apt-get update
     # install dependencies for package
-    - apt-get install --yes --no-install-recommends libxml2
+    - apt-get install --yes --no-install-recommends libxml2 libssl-dev libcurl4-openssl-dev
     - R -e 'install.packages(c("devtools", "testthat"))'
     - R -e 'devtools::install_deps(dependencies = c("Depends", "Imports", "Suggests"))'
     # remove vignettes folder and get VignetteBuilder field out of DESCRIPTION file
@@ -30,7 +30,7 @@ R 3.4:
     script:
     - apt-get update
     # install dependencies for package
-    - apt-get install --yes --no-install-recommends libxml2
+    - apt-get install --yes --no-install-recommends libxml2 libssl-dev libcurl4-openssl-dev
     - R -e 'install.packages(c("devtools", "testthat"))'
     - R -e 'devtools::install_deps(dependencies = c("Depends", "Imports", "Suggests"))'
     # remove vignettes folder and get VignetteBuilder field out of DESCRIPTION file
@@ -46,7 +46,7 @@ R 3.5:
     script:
     - apt-get update
     # install dependencies for package
-    - apt-get install --yes --no-install-recommends libxml2
+    - apt-get install --yes --no-install-recommends libxml2 libssl-dev libcurl4-openssl-dev
     - R -e 'install.packages(c("devtools", "testthat"))'
     - R -e 'devtools::install_deps(dependencies = c("Depends", "Imports", "Suggests"))'
     # remove vignettes folder and get VignetteBuilder field out of DESCRIPTION file