diff --git a/src/dsp/dsp.h b/src/dsp/dsp.h
index c4f57e4d..73a66be2 100644
--- a/src/dsp/dsp.h
+++ b/src/dsp/dsp.h
@@ -121,10 +121,11 @@ extern "C" {
 
 // Note: ARM64 is supported in Visual Studio 2017, but requires the direct
 // inclusion of arm64_neon.h; Visual Studio 2019 includes this file in
-// arm_neon.h.
+// arm_neon.h. Compile errors were seen with Visual Studio 2019 16.4 with
+// vtbl4_u8(); a fix was made in 16.6.
 #if defined(_MSC_VER) && \
   ((_MSC_VER >= 1700 && defined(_M_ARM)) || \
-   (_MSC_VER >= 1920 && defined(_M_ARM64)))
+   (_MSC_VER >= 1926 && defined(_M_ARM64)))
 #define WEBP_USE_NEON
 #define WEBP_USE_INTRINSICS
 #endif