diff --git a/.nvmrc b/.nvmrc
index 4e32c7b..c250d84 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-5.10.1
+6.9.4
diff --git a/circle.yml b/circle.yml
index e0f81bc..8fd641b 100644
--- a/circle.yml
+++ b/circle.yml
@@ -14,10 +14,10 @@ checkout:
     - git submodule update --init --recursive
 
 dependencies:
-    post:
-        - pelican -v
-
+  override:
+    - scripts/build
+    - pelican -v
 
 test:
-    override:
-        - scripts/test
+  override:
+    - scripts/test
diff --git a/scripts/build b/scripts/build
new file mode 100755
index 0000000..71635b4
--- /dev/null
+++ b/scripts/build
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+if [ -z "$NVM_DIR" ]
+then
+    NVM_DIR="$HOME/.nvm"
+fi
+
+. $NVM_DIR/nvm.sh
+nvm install
+nvm use
+
+set -e
+
+pyvenv env
+
+env/bin/pip install -r requirements.txt
+
+npm install
diff --git a/scripts/run-build-server.sh b/scripts/run-build-server.sh
old mode 100644
new mode 100755