diff --git a/setup/build-thirdparty.sh b/setup/build-thirdparty.sh
index e83ecdfa..5d91fe9c 100755
--- a/setup/build-thirdparty.sh
+++ b/setup/build-thirdparty.sh
@@ -3,8 +3,8 @@
 . `dirname $0`/sdbs.inc
 
 for module in \
-  Mojolicious \
-  Mojo::IOLoop::ForkCall \
+  Mojolicious@5.21 \
+  Mojo::IOLoop::ForkCall@0.12 \
 ; do
 perlmodule $module
 done