diff --git a/conda_libmamba_solver/conda_build_exceptions.py b/conda_libmamba_solver/conda_build_exceptions.py
index 915c64d1..64088f72 100644
--- a/conda_libmamba_solver/conda_build_exceptions.py
+++ b/conda_libmamba_solver/conda_build_exceptions.py
@@ -25,6 +25,6 @@ def __init__(self, matchspecs=None, explanation=None, *args, **kwargs):
     def __str__(self) -> str:
         msg = self.message
         if not self.explanation:
-            # print simple message in log.warn() calls
+            # print simple message in log.warning() calls
             return msg
         return "\n".join([msg, self.explanation])
diff --git a/conda_libmamba_solver/index.py b/conda_libmamba_solver/index.py
index c26e36b2..4c5ca00c 100644
--- a/conda_libmamba_solver/index.py
+++ b/conda_libmamba_solver/index.py
@@ -278,7 +278,9 @@ def _json_path_to_repo_info(
             solv_stat = None
 
         if solv_stat is None and json_stat is None:
-            log.warn("No repodata found for channel %s. Solve will fail.", channel.canonical_name)
+            log.warning(
+                "No repodata found for channel %s. Solve will fail.", channel.canonical_name
+            )
             return
         if solv_stat is None:
             path_to_use = json_path
diff --git a/conda_libmamba_solver/solver.py b/conda_libmamba_solver/solver.py
index 20025c2d..44293d50 100644
--- a/conda_libmamba_solver/solver.py
+++ b/conda_libmamba_solver/solver.py
@@ -829,7 +829,7 @@ def _export_solved_records(
                     out_state.records.pop(name, None)
                     break
             else:
-                log.warn("Tried to unlink %s but it is not installed or manageable?", filename)
+                log.warning("Tried to unlink %s but it is not installed or manageable?", filename)
 
         for_conda_build = self._called_from_conda_build()
         for channel, filename, json_payload in to_link: