diff --git a/pypath/omnipath/server/run.py b/pypath/omnipath/server/run.py
index 907888627..75449dc47 100644
--- a/pypath/omnipath/server/run.py
+++ b/pypath/omnipath/server/run.py
@@ -283,7 +283,7 @@ def _set_www_root(self):
 
     def _local_path(self, request):
 
-        if request.postpath and request.postpath[-1].startswith('_'):
+        if request.postpath and request.postpath[-1][0] in ('_', '.'):
 
             return
 
@@ -291,7 +291,7 @@ def _local_path(self, request):
 
             path =  os.path.join(wwwroot, *request.postpath)
 
-            if os.path.exists(path):
+            if os.path.isfile(path):
 
                 return path
 
diff --git a/pyproject.toml b/pyproject.toml
index 96b87db51..a300f1957 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,7 +62,7 @@ openpyxl = "*"
 pandas = "*"
 psutil = "*"
 pycurl = "*"
-pypath_common = ">=0.1.1"
+pypath_common = ">=0.2.0"
 pyreadr = "*"
 PyYAML = "*"
 rdata = "*"