diff --git a/BUILD.gn b/BUILD.gn
index eaa7ad5..49227d9 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -334,6 +334,9 @@
       # TODO(bugs.webrtc.org/9274): Remove these warnings as soon as MSVC allows
       # external headers warning suppression (or fix them upstream).
       cflags += [ "/wd4702" ]  # unreachable code
+
+      # MSVC 2019 warning suppressions for C++17 compiling
+      cflags += [ "/wd5041" ]  # out-of-line definition for constexpr static data member is not needed and is deprecated in C++17
     }
   }
 
diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index ec00aad..3935105 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -1272,12 +1272,12 @@
 
 if (rtc_include_tests) {
   audio_coding_deps = [
-    "../../common_audio",
-    "../../system_wrappers",
     ":audio_encoder_cng",
     ":g711",
     ":g722",
     ":pcm16b",
+    "../../common_audio",
+    "../../system_wrappers",
   ]
   if (rtc_include_ilbc) {
     audio_coding_deps += [ ":ilbc" ]
diff --git a/modules/audio_coding/acm2/acm_receiver_unittest.cc b/modules/audio_coding/acm2/acm_receiver_unittest.cc
index 175d11f..74a0c7a 100644
--- a/modules/audio_coding/acm2/acm_receiver_unittest.cc
+++ b/modules/audio_coding/acm2/acm_receiver_unittest.cc
@@ -289,7 +289,8 @@
   constexpr int payload_type = 34;
   const SdpAudioFormat codec = {"L16", 16000, 1};
   const AudioCodecInfo info = SetEncoder(payload_type, codec);
-  encoder_factory_->QueryAudioEncoder(codec).value();
+  auto const value = encoder_factory_->QueryAudioEncoder(codec);
+  ASSERT_TRUE(value.has_value());
   receiver_->SetCodecs({{payload_type, codec}});
   const int kNumPackets = 5;
   AudioFrame frame;