diff --git a/dirichletprocess.Rproj b/dirichletprocess.Rproj
index 497f8bf..acb4b55 100644
--- a/dirichletprocess.Rproj
+++ b/dirichletprocess.Rproj
@@ -18,3 +18,4 @@ StripTrailingWhitespace: Yes
 BuildType: Package
 PackageUseDevtools: Yes
 PackageInstallArgs: --no-multiarch --with-keep.source
+PackageBuildArgs: --compact-vignettes=gs+qpdf
diff --git a/vignettes/dirichletprocess.pdf b/vignettes/dirichletprocess.pdf
index 8701194..876ed60 100644
Binary files a/vignettes/dirichletprocess.pdf and b/vignettes/dirichletprocess.pdf differ