diff --git a/package.json b/package.json
index 4edc00a..2392d9b 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "peerDependencies": {
     "@angular/core": "^2.0.0 || ^4.0.0",
     "@ngrx/store": "^1.5.0 || ^2.0.0",
-    "rxjs": "^5.0.0"
+    "rxjs": "^5.4.0"
   },
   "devDependencies": {
     "@angular/common": "^2.0.0",
@@ -62,13 +62,13 @@
     "reflect-metadata": "^0.1.3",
     "rimraf": "^2.6.1",
     "rollup": "^0.34.13",
-    "rxjs": "^5.0.0-beta.12",
+    "rxjs": "^5.4.0",
     "source-map-loader": "^0.1.5",
     "ts-loader": "^0.8.2",
-    "ts-node": "^1.6.0",
+    "ts-node": "^3.1.0",
     "tslint": "^3.15.1",
     "tslint-loader": "^2.1.5",
-    "typescript": "^2.0.2",
+    "typescript": "^2.4.0",
     "uglifyjs": "^2.4.10",
     "zone.js": "^0.7.2"
   },
diff --git a/spec/effects.spec.ts b/spec/effects.spec.ts
index 848383e..550610c 100644
--- a/spec/effects.spec.ts
+++ b/spec/effects.spec.ts
@@ -1,4 +1,5 @@
 import 'rxjs/add/observable/of';
+import 'rxjs/add/operator/toArray';
 import { Observable } from 'rxjs/Observable';
 
 import { Effect, mergeEffects } from '../src/effects';
@@ -16,7 +17,7 @@ describe('mergeEffects', function() {
     const expected = ['a', 'b', 'd'];
 
     mergeEffects(mock).toArray().subscribe({
-      next(actual) {
+      next(actual: any[]) {
         expect(actual).toEqual(expected);
       },
       error: done,
diff --git a/src/actions.ts b/src/actions.ts
index 24029a3..e070577 100644
--- a/src/actions.ts
+++ b/src/actions.ts
@@ -14,12 +14,6 @@ export class Actions extends Observable<Action> {
     this.source = actionsSubject;
   }
 
-  lift<Action>(operator: Operator<any, Action>): Observable<Action> {
-    const observable = new Actions(this);
-    observable.operator = operator;
-    return observable;
-  }
-
   ofType(...keys: string[]): Actions {
     return filter.call(this, ({ type }: {type: string}) => {
       const len = keys.length;
diff --git a/tsconfig.json b/tsconfig.json
index 79f9c75..f66e1eb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -13,6 +13,9 @@
     "declaration": true,
     "module": "commonjs",
     "lib": ["es5", "dom", "es2015"],
+    "typeRoots": [
+      "../node_modules"
+    ],
     "types": [
       "jasmine",
       "node"
diff --git a/yarn.lock b/yarn.lock
index 7c7fb1b..61bd0e7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -97,9 +97,11 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-any-promise@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
+ansi-styles@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.1.0.tgz#09c202d5c917ec23188caa5c9cb9179cd9547750"
+  dependencies:
+    color-convert "^1.0.0"
 
 append-transform@^0.4.0:
   version "0.4.0"
@@ -324,7 +326,7 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.1.0, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -334,6 +336,14 @@ chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chalk@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.0.1.tgz#dbec49436d2ae15f536114e76d14656cdbc0f44d"
+  dependencies:
+    ansi-styles "^3.1.0"
+    escape-string-regexp "^1.0.5"
+    supports-color "^4.0.0"
+
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
@@ -354,6 +364,16 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
+color-convert@^1.0.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
+  dependencies:
+    color-name "^1.1.1"
+
+color-name@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.2.tgz#5c8ab72b64bd2215d617ae9559ebb148475cf98d"
+
 colors@^1.0.3, colors@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
@@ -683,7 +703,7 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-escape-string-regexp@^1.0.2:
+escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
@@ -955,6 +975,10 @@ has-flag@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
 
+has-flag@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
+
 has@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
@@ -1603,7 +1627,7 @@ pinkie-promise@^2.0.0:
   dependencies:
     pinkie "^2.0.0"
 
-pinkie@^2.0.0, pinkie@^2.0.4:
+pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
@@ -1757,9 +1781,9 @@ rollup@^0.34.13:
   dependencies:
     source-map-support "^0.4.0"
 
-rxjs@^5.0.0-beta.12:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.3.0.tgz#d88ccbdd46af290cbdb97d5d8055e52453fabe2d"
+rxjs@^5.4.0:
+  version "5.4.2"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.4.2.tgz#2a3236fcbf03df57bae06fd6972fd99e5c08fcf7"
   dependencies:
     symbol-observable "^1.0.1"
 
@@ -1921,6 +1945,10 @@ strip-bom@^2.0.0:
   dependencies:
     is-utf8 "^0.2.0"
 
+strip-bom@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+
 strip-indent@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-1.0.1.tgz#0c7962a6adefa7bbd4ac366460a638552ae1a0a2"
@@ -1945,6 +1973,12 @@ supports-color@^3.1.0, supports-color@^3.1.2:
   dependencies:
     has-flag "^1.0.0"
 
+supports-color@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.1.0.tgz#92cc14bb3dad8928ca5656c33e19a19f20af5c7a"
+  dependencies:
+    has-flag "^2.0.0"
+
 symbol-observable@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.4.tgz#29bf615d4aa7121bdd898b22d4b3f9bc4e2aa03d"
@@ -2016,30 +2050,26 @@ ts-loader@^0.8.2:
     object-assign "^2.0.0"
     semver "^5.0.1"
 
-ts-node@^1.6.0:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-1.7.3.tgz#dee7f8a84751732d3c2e497cac5a02fb117dfee7"
+ts-node@^3.1.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-3.2.0.tgz#9814f0c0141784900cf12fef1197ad4b7f4d23d1"
   dependencies:
     arrify "^1.0.0"
-    chalk "^1.1.1"
+    chalk "^2.0.0"
     diff "^3.1.0"
     make-error "^1.1.1"
     minimist "^1.2.0"
     mkdirp "^0.5.1"
-    pinkie "^2.0.4"
     source-map-support "^0.4.0"
-    tsconfig "^5.0.2"
+    tsconfig "^6.0.0"
     v8flags "^2.0.11"
-    xtend "^4.0.0"
-    yn "^1.2.0"
+    yn "^2.0.0"
 
-tsconfig@^5.0.2:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/tsconfig/-/tsconfig-5.0.3.tgz#5f4278e701800967a8fc383fd19648878f2a6e3a"
+tsconfig@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/tsconfig/-/tsconfig-6.0.0.tgz#6b0e8376003d7af1864f8df8f89dd0059ffcd032"
   dependencies:
-    any-promise "^1.3.0"
-    parse-json "^2.2.0"
-    strip-bom "^2.0.0"
+    strip-bom "^3.0.0"
     strip-json-comments "^2.0.0"
 
 tsickle@^0.2:
@@ -2079,9 +2109,9 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-typescript@^2.0.2:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.3.0.tgz#2e63e09284392bc8158a2444c33e2093795c0418"
+typescript@^2.4.0:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.4.1.tgz#c3ccb16ddaa0b2314de031e7e6fee89e5ba346bc"
 
 uglify-js@^2.6:
   version "2.8.22"
@@ -2182,7 +2212,7 @@ write-file-atomic@^1.1.4:
     imurmurhash "^0.1.4"
     slide "^1.1.5"
 
-xtend@^4.0.0, xtend@~4.0.1:
+xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
@@ -2231,9 +2261,9 @@ yargs@~3.10.0:
     decamelize "^1.0.0"
     window-size "0.1.0"
 
-yn@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/yn/-/yn-1.2.0.tgz#d237a4c533f279b2b89d3acac2db4b8c795e4a63"
+yn@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/yn/-/yn-2.0.0.tgz#e5adabc8acf408f6385fc76495684c88e6af689a"
 
 zone.js@^0.7.2:
   version "0.7.8"