diff --git a/tools/valgrind-webrtc/gtest_exclude/libjingle_peerconnection_unittest.gtest-memcheck.txt b/tools/valgrind-webrtc/gtest_exclude/libjingle_peerconnection_unittest.gtest-memcheck.txt
index b6f59dae0f..e5674b8150 100644
--- a/tools/valgrind-webrtc/gtest_exclude/libjingle_peerconnection_unittest.gtest-memcheck.txt
+++ b/tools/valgrind-webrtc/gtest_exclude/libjingle_peerconnection_unittest.gtest-memcheck.txt
@@ -25,3 +25,4 @@ PeerConnectionInterfaceTest.DataChannelCloseWhenPeerConnectionClose
 PeerConnectionInterfaceTest.TestDataChannel
 PeerConnectionInterfaceTest.TestSendBinaryOnRtpDataChannel
 PeerConnectionInterfaceTest.TestSendOnlyDataChannel
+SctpDataChannelTest.BufferedAmountWhenBlocked
diff --git a/tools/valgrind-webrtc/tsan/suppressions.txt b/tools/valgrind-webrtc/tsan/suppressions.txt
index e85150c52b..e991bfd448 100644
--- a/tools/valgrind-webrtc/tsan/suppressions.txt
+++ b/tools/valgrind-webrtc/tsan/suppressions.txt
@@ -483,6 +483,12 @@
   fun:webrtc::ThreadPosix::Run
   fun:StartThread
 }
+{
+  bug_1205_48
+  ThreadSanitizer:Race
+  fun:webrtc::Bitrate::BitrateLast
+  ...
+}
 {
   bug_2078_1
   ThreadSanitizer:Race