diff --git a/regexes.yaml b/regexes.yaml
index e7235e99..15edd6ba 100644
--- a/regexes.yaml
+++ b/regexes.yaml
@@ -980,6 +980,9 @@ user_agent_parsers:
   - regex: '^(ViaFree|Viafree)-(?:tvOS-)?[A-Z]{2}/(\d+)\.(\d+)\.(\d+)'
     family_replacement: 'ViaFree'
 
+  # HTTrack crawler
+  - regex: '\b(HTTrack) (\d+)\.(\d+)(?:[\.\-](\d+)|)'
+
 os_parsers:
   ##########
   # HbbTV vendors
diff --git a/tests/test_ua.yaml b/tests/test_ua.yaml
index d0a0be92..45f62b49 100644
--- a/tests/test_ua.yaml
+++ b/tests/test_ua.yaml
@@ -8568,3 +8568,9 @@ test_cases:
     major:  '1'
     minor:  '0'
     patch:
+
+  - user_agent_string: 'Mozilla/4.5 (compatible; HTTrack 3.0x; Windows 98)'
+    family: 'HTTrack'
+    major:  '3'
+    minor:  '0'
+    patch: