diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c644f63..474ddff 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,7 +33,7 @@ test:buster:
     needs: ["build:buster"]
     image: debian:buster
     before_script:
-        - apt-get update && apt-get install -y exim4-daemon-heavy openssl
+        - apt-get update && apt-get install -y exim4-daemon-heavy openssl libsodium
     script:
         - cd src
         - ./simple_exim_test.sh
@@ -43,7 +43,7 @@ test:bullseye:
     needs: ["build:bullseye"]
     image: debian:bullseye
     before_script:
-        - apt-get update && apt-get install -y exim4-daemon-heavy openssl
+        - apt-get update && apt-get install -y exim4-daemon-heavy openssl libsodium
     script:
         - cd src
         - ./simple_exim_test.sh