diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2d8bf43..edd8119 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ stages:
     stage: build
     before_script:
         - apt-get update
-        - DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy pkg-config
+        - DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy pkg-config openssl
     script:
         - meson build
         - cd build