diff --git a/lib/model/yake_keywords.py b/lib/model/yake_keywords.py
index 9ac0de3..cb2bc70 100644
--- a/lib/model/yake_keywords.py
+++ b/lib/model/yake_keywords.py
@@ -49,7 +49,9 @@ def run_yake(self, text: str,
         ### replace special characters
         replacement = {"`": "'",
                        "‘": "'",
-                       "“": "\""}
+                       "’": "'",
+                       "“": "\"",
+                       "”": "\""}
         for k, v in replacement.items():
             text = text.replace(k, v)
         ### extract keywords