diff --git a/src/index.js b/src/index.js
index 3908658..6c1dde3 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,6 +2,7 @@ import axios from 'axios';
 import qs from 'qs';
 
 import buildSearchQuery from './buildSearchQuery';
+import PACKAGE_TYPES from './packageTypes';
 
 const NPMS_API_BASE_URL = 'https://api.npms.io/v2';
 
@@ -11,7 +12,7 @@ const search = ({
   author = null,
   maintainer = null,
   exclude = {
-    packageTypes: [],
+    packageTypes: [PACKAGE_TYPES.DEPRECATED, PACKAGE_TYPES.INSECURE, PACKAGE_TYPES.UNSTABLE],
     keywords: [],
   },
   include = {
@@ -66,4 +67,5 @@ const getSuggestions = ({
 export {
   search,
   getSuggestions,
+  PACKAGE_TYPES,
 };
diff --git a/src/packageTypes.js b/src/packageTypes.js
new file mode 100644
index 0000000..2d169ba
--- /dev/null
+++ b/src/packageTypes.js
@@ -0,0 +1,7 @@
+const PACKAGE_TYPES = Object.freeze({
+  DEPRECATED: 'deprecated',
+  UNSTABLE: 'unstable',
+  INSECURE: 'insecure',
+});
+
+export default PACKAGE_TYPES;