diff --git a/gitlab/image.docker b/gitlab/image.docker
index c0257398..f86a5666 100644
--- a/gitlab/image.docker
+++ b/gitlab/image.docker
@@ -34,7 +34,7 @@ RUN export DEBIAN_FRONTEND=noninteractive; \
                        doxygen doxygen-latex graphviz \
                        mesa-vulkan-drivers mesa-vulkan-drivers:i386 \
                        vulkan-tools spirv-headers \
-                       libegl-dev libegl-dev:i386 \
+                       libegl-dev libegl-dev:i386 libjson-perl libjson-xs-perl \
                        libvulkan-dev libvulkan-dev:i386 \
                        libncurses-dev libncurses-dev:i386 \
                        libopengl-dev libopengl-dev:i386 \