diff --git a/.travis.yml b/.travis.yml
index 69306cd3..2e30c885 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,5 +23,5 @@ notifications:
 #  - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
 #  - julia -e 'Pkg.clone(pwd()); Pkg.build("SpecialFunctions"); Pkg.test("SpecialFunctions"; coverage=true)';
 after_success:
-  - julia -e 'cd(Pkg.dir("SpecialFunctions")); Pkg.add("Documenter"); include(joinpath("docs", "make.jl"))';
+  - julia -e 'cd(Pkg.dir("SpecialFunctions")); ps=Pkg.PackageSpec(name="Documenter", version="0.19"); Pkg.add(ps); Pkg.pin(ps); include(joinpath("docs", "make.jl"))';
   - julia -e 'cd(Pkg.dir("SpecialFunctions")); Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())';