diff --git a/onert-micro/onert-micro/include/pal/common/PALAveragePool2DCommon.h b/onert-micro/onert-micro/include/pal/common/PALAveragePool2DCommon.h
index 0f72f56fa95..16579557ddb 100644
--- a/onert-micro/onert-micro/include/pal/common/PALAveragePool2DCommon.h
+++ b/onert-micro/onert-micro/include/pal/common/PALAveragePool2DCommon.h
@@ -55,9 +55,11 @@ OMStatus AveragePool(const core::Pool2DParams &params, const core::OMRuntimeShap
           // Compute the boundaries of the filter region clamped so as to
           // ensure that the filter window fits in the input array.
           const int filter_x_start = std::max(0, -in_x_origin);
-          const int filter_x_end = std::min(params.filter_w, input_width - in_x_origin);
+          const int filter_x_end = std::min(static_cast<int32_t>(params.filter_w),
+                                            static_cast<int32_t>(input_width - in_x_origin));
           const int filter_y_start = std::max(0, -in_y_origin);
-          const int filter_y_end = std::min(params.filter_h, input_height - in_y_origin);
+          const int filter_y_end = std::min(static_cast<int32_t>(params.filter_h),
+                                            static_cast<int32_t>(input_height - in_y_origin));
 
           float total = 0.f;
           float filter_count = 0;
diff --git a/onert-micro/onert-micro/include/pal/mcu/PALAveragePool2D.h b/onert-micro/onert-micro/include/pal/mcu/PALAveragePool2D.h
index 0d054e596a4..62fe4602196 100644
--- a/onert-micro/onert-micro/include/pal/mcu/PALAveragePool2D.h
+++ b/onert-micro/onert-micro/include/pal/mcu/PALAveragePool2D.h
@@ -58,9 +58,11 @@ OMStatus AveragePool(const core::Pool2DParams &params, const core::OMRuntimeShap
           // Compute the boundaries of the filter region clamped so as to
           // ensure that the filter window fits in the input array.
           const int filter_x_start = std::max(0, -in_x_origin);
-          const int filter_x_end = std::min(params.filter_w, input_width - in_x_origin);
+          const int filter_x_end = std::min(static_cast<int32_t>(params.filter_w),
+                                            static_cast<int32_t>(input_width - in_x_origin));
           const int filter_y_start = std::max(0, -in_y_origin);
-          const int filter_y_end = std::min(params.filter_h, input_height - in_y_origin);
+          const int filter_y_end = std::min(static_cast<int32_t>(params.filter_h),
+                                            static_cast<int32_t>(input_height - in_y_origin));
           int32_t acc = 0;
           int filter_count = 0;
           for (int filter_y = filter_y_start; filter_y < filter_y_end; ++filter_y)
diff --git a/onert-micro/onert-micro/include/pal/mcu/PALConv2D.h b/onert-micro/onert-micro/include/pal/mcu/PALConv2D.h
index 1c850e85be2..3bca5a902ec 100644
--- a/onert-micro/onert-micro/include/pal/mcu/PALConv2D.h
+++ b/onert-micro/onert-micro/include/pal/mcu/PALConv2D.h
@@ -46,8 +46,8 @@ OMStatus ConvPerChannel(const core::ConvQuant &params, const core::OMRuntimeShap
   const int pad_height = params.pad_h;
   const int32_t output_offset = params.output_offset;
 
-  const std::vector<int32_t> &output_multiplier = params.per_channel_output_multiplier;
-  const std::vector<int32_t> &output_shift = params.per_channel_output_shift;
+  const auto &output_multiplier = params.per_channel_output_multiplier;
+  const auto &output_shift = params.per_channel_output_shift;
 
   // Set min and max value of the output.
   const int32_t output_activation_min = params.quantized_activation_min;