diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87353989fbee43a76d88b2671423fd0c39cc376d..6bfb71651e0dfa9a5cca0693dcb27d1745cd8455 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## new in jupyter-openbis-extension 0.5.3
+
+- fixed Windows path
+
 ## new in jupyter-openbis-extension 0.5.2
 
 - dataSet properties now appear as separate columns
diff --git a/jupyter-openbis-extension/static/connectionDialog.js b/jupyter-openbis-extension/static/connectionDialog.js
index c8d01ab61e699f759c8569df0dea540df3242bf2..4a47b1ef3e1bcd4872ed5b80e697828f639a4cf2 100644
--- a/jupyter-openbis-extension/static/connectionDialog.js
+++ b/jupyter-openbis-extension/static/connectionDialog.js
@@ -236,7 +236,13 @@ define(
                 default_working_dir = data.notebook_dir + rel_path
             }
             else {
-                default_working_dir = data.notebook_dir + "/" + rel_path
+                if (navigator.platform == "Win32") {
+                    default_working_dir = data.notebook_dir + "\\" + rel_path
+                }
+                else {
+                    default_working_dir = data.notebook_dir + "/" + rel_path
+                }
+
             }
 
             working_dir_in.value = state.working_dir ? state.working_dir : default_working_dir
diff --git a/setup.py b/setup.py
index 7d0e5a53adc0d7a3c69b254ffd27004a27c65763..b547a76007aeb9af11da73ea47ae2e69582b3cff 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setup(
     name='jupyter-openbis-extension',
-    version= '0.5.2',
+    version= '0.5.3',
     author='Swen Vermeul |  ID SIS | ETH Zürich',
     author_email='swen@ethz.ch',
     description='Extension for Jupyter notebooks to connect to openBIS and download/upload datasets, inluding the notebook itself',
@@ -23,7 +23,7 @@ setup(
     install_requires=[
         'jupyter-nbextensions-configurator',
         'jupyter',
-        'jupyter-openbis-server>=0.1.3',
+        'jupyter-openbis-server>=0.1.4',
         'numpy',
         'tornado==5.1.1',
     ],