diff --git a/tools/conll2text.py b/tools/conll2text.py
index 268981f2498d1f531f457dc35832802605674c8e..5334ee20211daf8e04ca907c589ae9378f769b1d 100755
--- a/tools/conll2text.py
+++ b/tools/conll2text.py
@@ -1,4 +1,4 @@
-#! /usr/bin/python
+#! /usr/bin/python3
 
 import sys
 
diff --git a/tools/conlluAddMissingColumns.py b/tools/conlluAddMissingColumns.py
index e125838251d491fb8ef811011670599e353369ac..7e902c4dbe170ff1ad49784a6e3d94b0fcf22a6d 100755
--- a/tools/conlluAddMissingColumns.py
+++ b/tools/conlluAddMissingColumns.py
@@ -29,7 +29,7 @@ if __name__ == "__main__" :
 
   lastWasEmpty = False
 
-  for line in open(sys.argv[1], "r") :
+  for line in open(sys.argv[1], "r", encoding="utf8") :
     lastWasEmpty = False
     if len(line.strip()) < 2 :
       lastWasEmpty = True