diff --git a/codeflash/optimization/function_optimizer.py b/codeflash/optimization/function_optimizer.py
index 131d1e44e..18fbf5064 100644
--- a/codeflash/optimization/function_optimizer.py
+++ b/codeflash/optimization/function_optimizer.py
@@ -905,7 +905,7 @@ def setup_and_establish_baseline(
             if self.args.override_fixtures:
                 restore_conftest(original_conftest_content)
             cleanup_paths(paths_to_cleanup)
-            return Failure("The threshold for test coverage was not met.")
+            return Failure("The threshold for test confidence was not met.")
 
         return Success(
             (
diff --git a/codeflash/version.py b/codeflash/version.py
index d0dbe354b..90269b23f 100644
--- a/codeflash/version.py
+++ b/codeflash/version.py
@@ -1,2 +1,2 @@
 # These version placeholders will be replaced by uv-dynamic-versioning during build.
-__version__ = "0.15.2"
+__version__ = "0.15.3"