Stable version 3.1.3

Refs #1584
Closes gh-1683
diff --git a/package.json b/package.json
index ff1fa03..4ce474d 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "esparse": "./bin/esparse.js",
     "esvalidate": "./bin/esvalidate.js"
   },
-  "version": "3.1.2",
+  "version": "3.1.3",
   "files": [
     "bin",
     "dist/esprima.js"
diff --git a/src/esprima.ts b/src/esprima.ts
index ff4538d..3410f0f 100644
--- a/src/esprima.ts
+++ b/src/esprima.ts
@@ -104,4 +104,4 @@
 export { Syntax } from './syntax';
 
 // Sync with *.json manifests.
-export const version = '3.1.2';
+export const version = '3.1.3';