diff --git a/bower.json b/bower.json
index 7c3f1e9..245a464 100644
--- a/bower.json
+++ b/bower.json
@@ -36,12 +36,15 @@
     "sinon-chai": "~2.4.0",
     "blanket": "~1.1.5",
     "sinonjs": "~1.7.3",
-    "marionette": "~1.4.1",
+    "marionette": "^1.4.1",
     "handlebars": "1.3.0",
     "jquery-mockjax": "1.5.3"
   },
   "dependencies": {
-    "backbone": "~1.1.0",
-    "underscore": "~1.5.2"
+    "backbone": "^1.1.0",
+    "underscore": "^1.5.2"
+  },
+  "resolutions": {
+    "underscore": ">=1.5.0"
   }
 }
diff --git a/package.json b/package.json
index 4ff4267..6d4d14d 100644
--- a/package.json
+++ b/package.json
@@ -53,8 +53,8 @@
     "dependency injection"
   ],
   "dependencies": {
-    "backbone": "~1.1.0",
-    "underscore": "^1.6.0"
+    "backbone": "^1.1.0",
+    "underscore": "^1.5.2"
   },
   "contributors":[
     "geekdave (https://github.com/geekdave)",