diff --git a/package.json b/package.json
index 03260ff..5e30edd 100644
--- a/package.json
+++ b/package.json
@@ -43,13 +43,13 @@
   },
   "devDependencies": {
     "bluebird": "^3.4.7",
-    "coveralls": "^2.11.15",
+    "coveralls": "^2.11.16",
     "docdash": "^0.4.0",
-    "eslint": "^3.13.1",
+    "eslint": "^3.15.0",
     "istanbul": "^0.4.5",
     "jsdoc": "^3.4.3",
     "mocha": "^3.2.0",
     "mocha-lcov-reporter": "^1.2.0",
-    "should": "^11.1.2"
+    "should": "^11.2.0"
   }
 }
diff --git a/test/pg_connection_pool.js b/test/pg_connection_pool.js
index 49fd1c2..f19bc25 100644
--- a/test/pg_connection_pool.js
+++ b/test/pg_connection_pool.js
@@ -9,6 +9,18 @@ describe("PgPool", () => {
     pgOptions: process.env.DATABASE_URL|| "postgres://postgres@localhost:5432/test_db"
   };
 
+  describe("constructor", () => {
+
+    it("should err if pg-native is not available but asked for it", () => {
+
+      const pool = new PgPool(Object.assign({}, options, {
+        pgNative: true
+      }));
+
+      return pool.acquire().should.be.rejectedWith(Error, { message: "CONN_FAILED" });
+    });
+  });
+
   describe("acquire", () => {
 
     it("should acquire connection with valid host", () => {
diff --git a/yarn.lock b/yarn.lock
index 37cafc3..e06dab1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -257,7 +257,7 @@ core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
-coveralls@^2.11.15:
+coveralls@^2.11.16:
   version "2.11.16"
   resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.11.16.tgz#da9061265142ddee954f68379122be97be8ab4b1"
   dependencies:
@@ -305,8 +305,8 @@ debug@2.2.0:
     ms "0.7.1"
 
 debug@^2.1.1, debug@^2.2.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.0.tgz#bc596bcabe7617f11d9fa15361eded5608b8499b"
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.1.tgz#79855090ba2c4e3115cc7d8769491d58f0491351"
   dependencies:
     ms "0.7.2"
 
@@ -431,7 +431,7 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint@^3.13.1:
+eslint@^3.15.0:
   version "3.15.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.15.0.tgz#bdcc6a6c5ffe08160e7b93c066695362a91e30f2"
   dependencies:
@@ -488,6 +488,10 @@ esprima@2.7.x, esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
+esprima@^3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
 esrecurse@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.1.0.tgz#4713b6536adf7f2ac4f327d559e7756bff648220"
@@ -841,13 +845,20 @@ js-tokens@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
 
-js-yaml@3.6.1, js-yaml@3.x, js-yaml@^3.5.1:
+js-yaml@3.6.1:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.6.1.tgz#6e5fe67d8b205ce4d22fad05b7781e8dadcc4b30"
   dependencies:
     argparse "^1.0.7"
     esprima "^2.6.0"
 
+js-yaml@3.x, js-yaml@^3.5.1:
+  version "3.8.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.1.tgz#782ba50200be7b9e5a8537001b7804db3ad02628"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^3.1.1"
+
 js2xmlparser@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/js2xmlparser/-/js2xmlparser-1.0.0.tgz#5a170f2e8d6476ce45405e04823242513782fe30"
@@ -1388,7 +1399,7 @@ should-util@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/should-util/-/should-util-1.0.0.tgz#c98cda374aa6b190df8ba87c9889c2b4db620063"
 
-should@^11.1.2:
+should@^11.2.0:
   version "11.2.0"
   resolved "https://registry.yarnpkg.com/should/-/should-11.2.0.tgz#7afca3182c234781d786d2278a87805b5ecf0409"
   dependencies: