1 files changed, 8 insertions, 1 deletions
diff --git a/deps/npm/lib/install/decompose-actions.js b/deps/npm/lib/install/decompose-actions.js
index d91c952f5a..70db70d035 100644
--- a/deps/npm/lib/install/decompose-actions.js
+++ b/deps/npm/lib/install/decompose-actions.js
@@ -10,9 +10,11 @@ module.exports = function (differences, decomposed, next) {
     var pkg = action[1]
     switch (cmd) {
       case 'add':
-      case 'update':
         addSteps(decomposed, pkg, done)
         break
+      case 'update':
+        updateSteps(decomposed, pkg, done)
+        break
       case 'move':
         moveSteps(decomposed, pkg, done)
         break
@@ -40,6 +42,11 @@ function addSteps (decomposed, pkg, done) {
   done()
 }
 
+function updateSteps (decomposed, pkg, done) {
+  decomposed.push(['remove', pkg])
+  addSteps(decomposed, pkg, done)
+}
+
 function moveSteps (decomposed, pkg, done) {
   decomposed.push(['move', pkg])
   decomposed.push(['build', pkg])