diff --git a/requirements.txt b/requirements.txt
index aa76280..e80ce58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
--e git+https://github.com/tercen/pytson@1.8.1#egg=pytson
+-e git+https://github.com/tercen/pytson@1.8.4#egg=pytson
 numpy==1.22.*
 pandas==2.1.*
 python-dateutil==2.8.*
diff --git a/setup.py b/setup.py
index b5b419f..8d1dd90 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
         'python-dateutil==2.8.*',
         'pytz==2023.*',
         'scipy==1.11.*',
-        'pytson @ git+https://github.com/tercen/pytson@1.8.1#egg=pytson',
+        'pytson @ git+https://github.com/tercen/pytson@1.8.4#egg=pytson',
         'polars==0.18.*',
         'pipreqs==0.4.*'
     ],