diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6543ea06625302b926628cca52664dab1c510d96..ef9fdb86786228ea43bdd7a4ec383e3da3866a71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,6 @@
 build-doc:
+    image: julia
     stage: build
-    image: julia:1.6
     script:
         - "julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'"
         - "julia --project=docs/ docs/make.jl"
-