diff --git a/package.json b/package.json
index f2342a7..adbefbc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "giftbit-cassava-routes",
-  "version": "2.0.0",
+  "version": "3.0.0",
   "description": "Private Giftbit routes for use with Cassava.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -31,14 +31,14 @@
     "@types/cookie": "^0.3.0",
     "@types/jsonwebtoken": "^7.2.1",
     "@types/mocha": "^2.2.41",
-    "@types/node": "^8.0.6",
-    "aws-sdk": "^2.80.0",
+    "@types/node": "^8.0.8",
+    "aws-sdk": "^2.81.0",
     "chai": "^4.0.2",
     "mocha": "^3.4.2",
     "rimraf": "^2.6.1",
     "ts-node": "^3.1.0",
-    "tslint": "^5.4.3",
-    "typescript": "2.3.4"
+    "tslint": "^5.5.0",
+    "typescript": "^2.4.1"
   },
   "dependencies": {
     "jsonwebtoken": "^7.4.1"
diff --git a/src/jwtauth/JwtAuthorizationRoute.test.ts b/src/jwtauth/JwtAuthorizationRoute.test.ts
index 31d1b02..36274b6 100644
--- a/src/jwtauth/JwtAuthorizationRoute.test.ts
+++ b/src/jwtauth/JwtAuthorizationRoute.test.ts
@@ -99,6 +99,60 @@ describe("JwtAuthorizationRoute", () => {
         chai.assert.isTrue(secondHandlerCalled);
     });
 
+    it("verifies a JWT with date strings", async() => {
+        // The spec calls for timestamps but we were issuing JWTs with date strings for a while.
+        // We'll still accept these technically-wrong JWTs.
+
+        const router = new cassava.Router();
+        const jwtAuthorizationRoute = new JwtAuthorizationRoute(Promise.resolve({secretkey:"secret"}));
+        jwtAuthorizationRoute.logErrors = false;
+        router.route(jwtAuthorizationRoute);
+        router.route({
+            matches: () => true,
+            handle: async evt => ({body: {}})
+        });
+
+        const resp = await cassava.testing.testRouter(router, cassava.testing.createTestProxyEvent("/foo/bar", "GET", {
+            headers: {
+                Authorization: "Bearer eyJ2ZXIiOjMsInZhdiI6MSwiYWxnIjoiSFMyNTYiLCJ0eXAiOiJKV1QifQ.eyJnIjp7Imd1aSI6InVzZXItZjJmZTU3ZTg2ZjQyNDc5ZTg5YzYwMzRmZTg0NGJmM2UtVEVTVCIsImdtaSI6InVzZXItZjJmZTU3ZTg2ZjQyNDc5ZTg5YzYwMzRmZTg0NGJmM2UtVEVTVCJ9LCJpYXQiOiIyMDE3LTA3LTA1VDIyOjQ5OjU5LjcxMiswMDAwIiwiZXhwIjoiMjIxNy0wNy0wNVQyMzo0OTo1OS43MTIrMDAwMCIsImp0aSI6ImJhZGdlLTMzZTQ1N2E2NDQ0ZTQ2YjY5MzU3YjkyMDMyM2ZjYWY2IiwicGFyZW50SnRpIjoiYmFkZ2UtYmMyM2IyYmQxMmIwNDJiYTk1ZTQyMzJiODBhZTNhYWIiLCJzY29wZXMiOlsiQyIsIkNFQyIsIkNFUiIsImxpZ2h0cmFpbFYxOmNhcmRTZWFyY2giXSwicm9sZXMiOltdfQ.ydBnIZXP_i7dhsIAQ-ajWltPX1uweLcMixkfaBEDCK4"
+            }
+        }));
+
+        chai.assert.equal(resp.statusCode, 200, JSON.stringify(resp));
+    });
+
+    it("rejects an Authorization header missing 'Bearer '", async() => {
+        const router = new cassava.Router();
+        const jwtAuthorizationRoute = new JwtAuthorizationRoute(Promise.resolve({secretkey:"secret"}));
+        jwtAuthorizationRoute.logErrors = false;
+        router.route(jwtAuthorizationRoute);
+
+        const resp = await cassava.testing.testRouter(router, cassava.testing.createTestProxyEvent("/foo/bar", "GET", {
+            headers: {
+                Authorization: "eyJ2ZXIiOjEsInZhdiI6MSwiYWxnIjoiSFMyNTYiLCJ0eXAiOiJKV1QifQ.eyJnIjp7Imd1aSI6InVzZXItNzA1MjIxMGJjYjk0NDQ4YjgyNWZmYTY4NTA4ZDI5YWQtVEVTVCIsImdtaSI6InVzZXItNzA1MjIxMGJjYjk0NDQ4YjgyNWZmYTY4NTA4ZDI5YWQifSwiaWF0IjoiMjAxNi0xMi0xMlQyMDoxMTo0MC45OTcrMDAwMCIsInNjb3BlcyI6WyJDIiwiVCIsIlIiLCJDRUMiLCJDRVIiLCJVQSIsIkYiXX0.uZxYrUPqwJk5oTTtDWaPOYzhRSt5dzRS4OZGYP8u2Po"
+            }
+        }));
+
+        chai.assert.isObject(resp);
+        chai.assert.equal(resp.statusCode, 401, JSON.stringify(resp));
+    });
+
+    it("rejects a JWT that is not base64", async() => {
+        const router = new cassava.Router();
+        const jwtAuthorizationRoute = new JwtAuthorizationRoute(Promise.resolve({secretkey:"secret"}));
+        jwtAuthorizationRoute.logErrors = false;
+        router.route(jwtAuthorizationRoute);
+
+        const resp = await cassava.testing.testRouter(router, cassava.testing.createTestProxyEvent("/foo/bar", "GET", {
+            headers: {
+                Authorization: "Bearer lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua"
+            }
+        }));
+
+        chai.assert.isObject(resp);
+        chai.assert.equal(resp.statusCode, 401, JSON.stringify(resp));
+    });
+
     it("rejects an expired JWT", async() => {
         const router = new cassava.Router();
         const jwtAuthorizationRoute = new JwtAuthorizationRoute(Promise.resolve({secretkey:"secret"}));
@@ -214,4 +268,20 @@ describe("JwtAuthorizationRoute", () => {
         chai.assert.isObject(resp);
         chai.assert.equal(resp.statusCode, 401, JSON.stringify(resp));
     });
+
+    it("rejects a JWT with alg:none", async() => {
+        const router = new cassava.Router();
+        const jwtAuthorizationRoute = new JwtAuthorizationRoute(Promise.resolve({secretkey:"secret"}));
+        jwtAuthorizationRoute.logErrors = false;
+        router.route(jwtAuthorizationRoute);
+
+        const resp = await cassava.testing.testRouter(router, cassava.testing.createTestProxyEvent("/foo/bar", "GET", {
+            headers: {
+                Authorization: "Bearer eyJ2ZXIiOjMsInZhdiI6MSwiYWxnIjoibm9uZSIsInR5cCI6IkpXVCJ9.eyJnIjp7Imd1aSI6InVzZXItZjJmZTU3ZTg2ZjQyNDc5ZTg5YzYwMzRmZTg0NGJmM2UtVEVTVCIsImdtaSI6InVzZXItZjJmZTU3ZTg2ZjQyNDc5ZTg5YzYwMzRmZTg0NGJmM2UtVEVTVCJ9LCJqdGkiOiJiYWRnZS0zM2U0NTdhNjQ0NGU0NmI2OTM1N2I5MjAzMjNmY2FmNiIsInNjb3BlcyI6WyJDIiwiQ0VDIiwiQ0VSIl0sInJvbGVzIjpbXX0.tFWA2jK8E0QVaG45h1BeARQQZxNJHVhIDh4-fs2qxhg"
+            }
+        }));
+
+        chai.assert.isObject(resp);
+        chai.assert.equal(resp.statusCode, 401, JSON.stringify(resp));
+    });
 });
diff --git a/src/jwtauth/JwtAuthorizationRoute.ts b/src/jwtauth/JwtAuthorizationRoute.ts
index 2fa45ae..ab8549a 100644
--- a/src/jwtauth/JwtAuthorizationRoute.ts
+++ b/src/jwtauth/JwtAuthorizationRoute.ts
@@ -14,8 +14,7 @@ export class JwtAuthorizationRoute implements cassava.routes.Route {
 
     constructor(
         private readonly authConfigPromise: Promise<AuthenticationConfig>,
-        private readonly rolesConfigPromise?: Promise<RolesConfig>,
-        private readonly jwtOptions?: jwt.VerifyOptions) {}
+        private readonly rolesConfigPromise?: Promise<RolesConfig>) {}
 
     async handle(evt: cassava.RouterEvent): Promise<cassava.RouterResponse> {
         try {
@@ -24,8 +23,10 @@ export class JwtAuthorizationRoute implements cassava.routes.Route {
                 throw new Error("Secret is null.  Check that the source of the secret can be accessed.");
             }
 
+            // Expiration time is checked manually because we issued JWTs with date string expirations,
+            // which is against the spec and the library rightly rejects those.
             const token = this.getToken(evt);
-            const payload = jwt.verify(token, secret.secretkey, this.jwtOptions);
+            const payload = jwt.verify(token, secret.secretkey, {ignoreExpiration: true, algorithms: ["HS256"]});
             const auth = new AuthorizationBadge(payload, this.rolesConfigPromise ? await this.rolesConfigPromise : null);
             if (auth.expirationTime && auth.expirationTime.getTime() < Date.now()) {
                 throw new Error(`jwt expired at ${auth.expirationTime} (and it is currently ${new Date()})`);