diff --git a/include/hermes/VM/Runtime.h b/include/hermes/VM/Runtime.h
index 42d9b12e0fa..4132fd56734 100644
--- a/include/hermes/VM/Runtime.h
+++ b/include/hermes/VM/Runtime.h
@@ -1695,7 +1695,7 @@ class ScopedNativeDepthReducer {
   // This is empirically good enough.
   static constexpr int kReducedNativeStackGap =
 #if LLVM_ADDRESS_SANITIZER_BUILD
-      256 * 1024;
+      128 * 1024;
 #else
       32 * 1024;
 #endif
diff --git a/lib/VM/Runtime.cpp b/lib/VM/Runtime.cpp
index 9307b5cfce0..bacf34984e7 100644
--- a/lib/VM/Runtime.cpp
+++ b/lib/VM/Runtime.cpp
@@ -86,7 +86,7 @@ static constexpr uint32_t kMaxSupportedNumRegisters =
 /// The minimum stack gap allowed from RuntimeConfig.
 static constexpr uint32_t kMinSupportedNativeStackGap =
 #if LLVM_ADDRESS_SANITIZER_BUILD
-    512 * 1024;
+    256 * 1024;
 #else
     64 * 1024;
 #endif