diff --git a/OMPython/ModelicaSystem.py b/OMPython/ModelicaSystem.py
index d6a3d654..cbd7fbd9 100644
--- a/OMPython/ModelicaSystem.py
+++ b/OMPython/ModelicaSystem.py
@@ -291,8 +291,10 @@ def parse_simflags(simflags: str) -> dict[str, Optional[str | dict[str, Any] | n
 
         The return data can be used as input for self.args_set().
         """
-        warnings.warn("The argument 'simflags' is depreciated and will be removed in future versions; "
-                      "please use 'simargs' instead", DeprecationWarning, stacklevel=2)
+        warnings.warn(message="The argument 'simflags' is depreciated and will be removed in future versions; "
+                              "please use 'simargs' instead",
+                      category=DeprecationWarning,
+                      stacklevel=2)
 
         simargs: dict[str, Optional[str | dict[str, Any] | numbers.Number]] = {}
 
@@ -585,7 +587,7 @@ def buildModel(self, variableFilter: Optional[str] = None):
 
     def sendExpression(self, expr: str, parsed: bool = True) -> Any:
         try:
-            retval = self._session.sendExpression(expr, parsed)
+            retval = self._session.sendExpression(command=expr, parsed=parsed)
         except OMCSessionException as ex:
             raise ModelicaSystemError(f"Error executing {repr(expr)}: {ex}") from ex
 
@@ -1612,9 +1614,9 @@ def _createCSVData(self, csvfile: Optional[OMCPath] = None) -> OMCPath:
         for signal_name, signal_values in inputs.items():
             signal = np.array(signal_values)
             interpolated_inputs[signal_name] = np.interp(
-                all_times,
-                signal[:, 0],  # times
-                signal[:, 1],  # values
+                x=all_times,
+                xp=signal[:, 0],  # times
+                fp=signal[:, 1],  # values
             )
 
         # Write CSV file
diff --git a/OMPython/OMCSession.py b/OMPython/OMCSession.py
index ee92ce9f..2295eb06 100644
--- a/OMPython/OMCSession.py
+++ b/OMPython/OMCSession.py
@@ -848,8 +848,10 @@ def run_model_executable(cmd_run_data: OMCSessionRunData) -> int:
         return returncode
 
     def execute(self, command: str):
-        warnings.warn("This function is depreciated and will be removed in future versions; "
-                      "please use sendExpression() instead", DeprecationWarning, stacklevel=2)
+        warnings.warn(message="This function is depreciated and will be removed in future versions; "
+                              "please use sendExpression() instead",
+                      category=DeprecationWarning,
+                      stacklevel=2)
 
         return self.sendExpression(command, parsed=False)