diff --git a/python/sdist/amici/sbml_import.py b/python/sdist/amici/sbml_import.py
index d436531031..a26c6e7d4a 100644
--- a/python/sdist/amici/sbml_import.py
+++ b/python/sdist/amici/sbml_import.py
@@ -1839,7 +1839,8 @@ def _process_event_observables(
                     f'Event observable {eo["name"]} uses `t` in '
                     "it's formula which is not the time variable. "
                     "For the time variable, please use `time` "
-                    "instead!"
+                    "instead!",
+                    stacklevel=1,
                 )
 
         # check for nesting of observables (unsupported)
@@ -2158,7 +2159,8 @@ def _get_conservation_laws_demartino(
                 "Conservation laws for non-constant species in "
                 "combination with parameterized stoichiometric "
                 "coefficients are not currently supported "
-                "and will be turned off."
+                "and will be turned off.",
+                stacklevel=1,
             )
             return []
 
@@ -2235,7 +2237,8 @@ def _get_conservation_laws_rref(
                 "Conservation laws for non-constant species in "
                 "combination with parameterized stoichiometric "
                 "coefficients are not currently supported "
-                "and will be turned off."
+                "and will be turned off.",
+                stacklevel=1,
             )
             return []
 
@@ -3049,7 +3052,8 @@ def _non_const_conservation_laws_supported(sbml_model: sbml.Model) -> bool:
         warnings.warn(
             "Conservation laws for non-constant species in "
             "models with RateRules are currently not supported "
-            "and will be turned off."
+            "and will be turned off.",
+            stacklevel=1,
         )
         return False
 
@@ -3061,7 +3065,8 @@ def _non_const_conservation_laws_supported(sbml_model: sbml.Model) -> bool:
         warnings.warn(
             "Conservation laws for non-constant species in "
             "models with Species-AssignmentRules are currently not "
-            "supported and will be turned off."
+            "supported and will be turned off.",
+            stacklevel=1,
         )
         return False
 
diff --git a/python/sdist/amici/swig_wrappers.py b/python/sdist/amici/swig_wrappers.py
index 3c4df44809..5762f50bec 100644
--- a/python/sdist/amici/swig_wrappers.py
+++ b/python/sdist/amici/swig_wrappers.py
@@ -78,7 +78,8 @@ def runAmiciSimulation(
         warnings.warn(
             "Adjoint sensitivity analysis for models with discontinuous right hand sides (events/piecewise functions) has not been thoroughly tested."
             "Sensitivities might be wrong. Tracked at https://github.com/AMICI-dev/AMICI/issues/18. "
-            "Adjoint sensitivity analysis may work if the location of the discontinuity is not parameter-dependent, but we still recommend testing accuracy of gradients."
+            "Adjoint sensitivity analysis may work if the location of the discontinuity is not parameter-dependent, but we still recommend testing accuracy of gradients.",
+            stacklevel=1,
         )
 
     with _capture_cstdout():
@@ -119,7 +120,8 @@ def runAmiciSimulations(
         warnings.warn(
             "Adjoint sensitivity analysis for models with discontinuous right hand sides (events/piecewise functions) has not been thoroughly tested. "
             "Sensitivities might be wrong. Tracked at https://github.com/AMICI-dev/AMICI/issues/18. "
-            "Adjoint sensitivity analysis may work if the location of the discontinuity is not parameter-dependent, but we still recommend testing accuracy of gradients."
+            "Adjoint sensitivity analysis may work if the location of the discontinuity is not parameter-dependent, but we still recommend testing accuracy of gradients.",
+            stacklevel=1,
         )
 
     with _capture_cstdout():
diff --git a/python/sdist/pyproject.toml b/python/sdist/pyproject.toml
index 58d39d4ea7..7c903273b5 100644
--- a/python/sdist/pyproject.toml
+++ b/python/sdist/pyproject.toml
@@ -130,4 +130,5 @@ line-length = 79
 extend-include = ["*.ipynb"]
 
 [tool.ruff.lint]
+extend-select = ["B028"]
 ignore = ["E402", "F403", "F405", "E741"]