diff --git a/debian-bootstrap.sh b/debian-bootstrap.sh
index 2c8d2c4f..3be72578 100755
--- a/debian-bootstrap.sh
+++ b/debian-bootstrap.sh
@@ -118,7 +118,7 @@ apt-get install -y \
     libyaml-dev \
     libzip-dev \
     libzmq3-dev \
-    llvm-3.9 \
+    llvm-3.7 \
     locales \
     m4 \
     minisat \