diff --git a/DEPS b/DEPS
index 366bb394938c464ea86b8873bc68684a981f6600..915c96abae745c311f287d4a4af8ee69ce076aeb 100644
--- a/DEPS
+++ b/DEPS
@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '9339a8a61af0955840775dc89f4791a7215c2caf',
+  'skia_revision': 'a4b837971c4b91de29f62909d340cbae33919e33',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the
diff --git a/ci/licenses_golden/licenses_skia b/ci/licenses_golden/licenses_skia
index 140cd257112969ee4f16dfe55613f71974584ea8..41fde4ee7c682d7e5c6501fad880f6a1c447d94e 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 1fddd339b082ea61ee90ee99bdfc18f8
+Signature: 325d99fc98da391f9673b69a1f687fd4
 
 UNUSED LICENSES:
 
@@ -2133,6 +2133,7 @@ FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Cl
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-MotoG4-CPU-Snapdragon617-arm-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-NVIDIA_Shield-GPU-TegraX1-arm64-Debug-All-Android_CCPR.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json
+FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5x-GPU-Adreno418-arm-Release-All-Android_Vulkan.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-CPU-Tegra3-arm-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVRG6430-x86-Release-All-Android.json
 FILE: ../../../third_party/skia/infra/bots/recipes/test.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm-Debug-All-Android_ASAN.json
@@ -5380,6 +5381,8 @@ FILE: ../../../third_party/skia/src/core/SkDescriptor.cpp
 FILE: ../../../third_party/skia/src/core/SkEffectPriv.h
 FILE: ../../../third_party/skia/src/core/SkStrikeInterface.h
 FILE: ../../../third_party/skia/src/core/SkStrikeSpec.h
+FILE: ../../../third_party/skia/src/core/SkYUVMath.cpp
+FILE: ../../../third_party/skia/src/core/SkYUVMath.h
 FILE: ../../../third_party/skia/src/gpu/GrAHardwareBufferUtils.cpp
 FILE: ../../../third_party/skia/src/gpu/GrAHardwareBufferUtils.h
 FILE: ../../../third_party/skia/src/gpu/GrBaseContextPriv.h
@@ -5388,6 +5391,8 @@ FILE: ../../../third_party/skia/src/gpu/GrContextPriv.cpp
 FILE: ../../../third_party/skia/src/gpu/GrContextThreadSafeProxy.cpp
 FILE: ../../../third_party/skia/src/gpu/GrContext_Base.cpp
 FILE: ../../../third_party/skia/src/gpu/GrCpuBuffer.h
+FILE: ../../../third_party/skia/src/gpu/GrDataUtils.cpp
+FILE: ../../../third_party/skia/src/gpu/GrDataUtils.h
 FILE: ../../../third_party/skia/src/gpu/GrGpuBuffer.cpp
 FILE: ../../../third_party/skia/src/gpu/GrGpuBuffer.h
 FILE: ../../../third_party/skia/src/gpu/GrImageContext.cpp