diff --git a/lib/regex.rb b/lib/regex.rb
index 233c04a..68d0e8a 100644
--- a/lib/regex.rb
+++ b/lib/regex.rb
@@ -147,7 +147,7 @@ def self.regex_range(from, to = nil) # :nodoc:
     # A hashtag must contain latin characters, numbers and underscores, but not all numbers.
     HASHTAG_ALPHA = /[a-z_#{LATIN_ACCENTS}#{NON_LATIN_HASHTAG_CHARS}#{CJ_HASHTAG_CHARACTERS}]/io
     HASHTAG_ALPHANUMERIC = /[a-z0-9_#{LATIN_ACCENTS}#{NON_LATIN_HASHTAG_CHARS}#{CJ_HASHTAG_CHARACTERS}]/io
-    HASHTAG_BOUNDARY = /\A|\z|[^&\/a-z0-9_#{LATIN_ACCENTS}#{NON_LATIN_HASHTAG_CHARS}#{CJ_HASHTAG_CHARACTERS}]/o
+    HASHTAG_BOUNDARY = /\A|\z|[^&a-z0-9_#{LATIN_ACCENTS}#{NON_LATIN_HASHTAG_CHARS}#{CJ_HASHTAG_CHARACTERS}]/o
 
     HASHTAG = /(#{HASHTAG_BOUNDARY})(#|＃)(#{HASHTAG_ALPHANUMERIC}*#{HASHTAG_ALPHA}#{HASHTAG_ALPHANUMERIC}*)/io
 
diff --git a/test/twitter-text-conformance b/test/twitter-text-conformance
index 17b101d..7d28394 160000
--- a/test/twitter-text-conformance
+++ b/test/twitter-text-conformance
@@ -1 +1 @@
-Subproject commit 17b101d33d6a1d052e0a42f8f67c8762bb9258d9
+Subproject commit 7d28394ecdd42725b24eb8b0c64c9a0dba24e746