diff --git a/es5-shim.js b/es5-shim.js
index bd93ed72..f78a76f0 100644
--- a/es5-shim.js
+++ b/es5-shim.js
@@ -956,7 +956,7 @@
         } catch (e) {
             try {
                 [1, 2].sort({});
-            } catch (e) {
+            } catch (e2) {
                 return false;
             }
         }
diff --git a/package.json b/package.json
index 6e2abc50..eb3fa30c 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   },
   "devDependencies": {
     "@ljharb/eslint-config": "^12.2.1",
-    "eslint": "^4.11.0",
+    "eslint": "^4.13.1",
     "jasmine-node": "^1.14.5",
     "jscs": "^3.0.7",
     "replace": "^0.3.0",