diff --git a/src/Fixtures/Crawlers.php b/src/Fixtures/Crawlers.php
index 2f62675..ceca5da 100644
--- a/src/Fixtures/Crawlers.php
+++ b/src/Fixtures/Crawlers.php
@@ -345,6 +345,7 @@ class Crawlers extends AbstractProvider
         'iplabel',
         'IPS\/[0-9]',
         'ips-agent',
+        'IPWorks HTTP\/S Component',
         'iqdb\/',
         'Irokez',
         'isitup\.org',
@@ -548,6 +549,7 @@ class Crawlers extends AbstractProvider
         'Robozilla\/[0-9]',
         'ROI Hunter',
         'RSSOwl',
+        'safe-agent-scanner',
         'SalesIntelligent',
         'SauceNAO',
         'SBIder',
@@ -561,6 +563,7 @@ class Crawlers extends AbstractProvider
         'SearchSight',
         'semanticdiscovery',
         'semanticjuice',
+        'Semiocast HTTP client',
         'SEO Browser',
         'Seo Servis',
         'seo-nastroj.cz',
@@ -633,6 +636,7 @@ class Crawlers extends AbstractProvider
         'terrainformatica\.com',
         'Test Certificate Info',
         'Tetrahedron\/[0-9]',
+        'The Drop Reaper',
         'The Expert HTML Source Viewer',
         'theinternetrules',
         'theoldreader\.com',
diff --git a/tests/crawlers.txt b/tests/crawlers.txt
index 321478a..b1aded8 100644
--- a/tests/crawlers.txt
+++ b/tests/crawlers.txt
@@ -2885,3 +2885,7 @@ Test Certificate Info
 Needle/1.4.2 (Node.js v6.9.2; linux x64)
 DavClnt
 Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 mixed-content-scan
+Mozilla/5.0 (compatible; Semiocast HTTP client; http://semiocast.com/)
+Mozilla/5.0 (compatible; The Drop Reaper; +http://tag1consulting.com/dropreaper.html)
+/n software IPWorks HTTP/S Component - www.nsoftware.com
+safe-agent-scanner