diff --git a/bootstrap.sh b/bootstrap.sh
index 24706b8be..3edb974c5 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -56,7 +56,7 @@ function install_mason_deps() {
     install sqlite 3.17.0 libsqlite3
     install expat 2.2.0 libexpat
     install icu ${ICU_VERSION}
-    install proj 4.9.3 libproj
+    install proj 6.0.1 libproj
     install pixman 0.34.0 libpixman-1
     install cairo 1.14.8 libcairo
     install webp 0.6.0 libwebp