diff --git a/nvm.sh b/nvm.sh
index f88486e..45bf52e 100755
--- a/nvm.sh
+++ b/nvm.sh
@@ -156,10 +156,10 @@ nvm()
             if [[ "`expr match $VERSION '\(^v0\.2\.[0-2]$\)'`" != '' ]]; then
               echo "npm requires node v0.2.3 or higher"
             else
-              curl http://npmjs.org/install.sh | clean=yes npm_install=0.2.19 sh
+              curl https://npmjs.org/install.sh | clean=yes npm_install=0.2.19 sh
             fi
           else
-            curl http://npmjs.org/install.sh | clean=yes sh
+            curl https://npmjs.org/install.sh | clean=yes sh
           fi
         fi
       else