diff --git a/epanet/epanet.py b/epanet/epanet.py
index 2251ff2..330639e 100644
--- a/epanet/epanet.py
+++ b/epanet/epanet.py
@@ -227,7 +227,7 @@ def dump_output(path: str) -> str:
     return json.dumps(data)
 
 
-def run_project(name: str, version: str = '3') -> str:
+def run_project(name: str, version: str = '2') -> str:
     if version != '3' and version != '2':
         version = '2'
 
@@ -264,7 +264,7 @@ def run_project(name: str, version: str = '3') -> str:
     return json.dumps(data)
 
 
-def run_inp(name: str, version: str = '3') -> str:
+def run_inp(name: str, version: str = '2') -> str:
     if version != '3' and version != '2':
         version = '2'
 
diff --git a/tjnetwork.py b/tjnetwork.py
index 9ce64ad..b8cd257 100644
--- a/tjnetwork.py
+++ b/tjnetwork.py
@@ -197,11 +197,11 @@ def import_inp(name: str, cs: ChangeSet, version: str = '3') -> bool:
 def export_inp(name: str, version: str = '3') -> ChangeSet:
     return api.export_inp(name, version)
 
-def run_project(name: str, version: str = '3') -> str:
+def run_project(name: str, version: str = '2') -> str:
     return epanet.run_project(name, version)
 
 # put in inp folder, name without extension
-def run_inp(name: str, version: str = '3') -> str:
+def run_inp(name: str, version: str = '2') -> str:
     return epanet.run_inp(name, version)
 
 # path is absolute path