diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index f6b6a926..dd2a909b 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -180,7 +180,7 @@
       "version": "1.3.3"
     },
     "grainstore": {
-      "version": "0.9.0",
+      "version": "0.9.1",
       "dependencies": {
         "carto": {
           "version": "0.9.2",
diff --git a/package.json b/package.json
index 4bc47881..2f37affd 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
         "cluster2": "git://github.com/CartoDB/cluster2.git#28cde11",
         "node-varnish": "0.1.1",
         "underscore"  : "~1.3.3",
-        "grainstore"  : "~0.9.0",
+        "grainstore"  : "~0.9.1",
         "windshaft"  : "~0.6.1",
         "step": "0.0.x",
         "generic-pool": "1.0.x",