diff --git a/test/install-runkit b/test/install-runkit
index 76663a6855..78d5deaa05 100755
--- a/test/install-runkit
+++ b/test/install-runkit
@@ -7,9 +7,10 @@ fi
 
 set -e
 
-git clone --depth=1 git://github.com/zenovich/runkit.git
+git clone --depth=100 git://github.com/zenovich/runkit.git
 
 pushd runkit
+git checkout c337393762d54cf6df305cf8e92dac3a162157f4
 
 phpize
 ./configure