--- zstd-1.3.0/lib/compress/zstdmt_compress.c
+++ zstd-1.3.0/lib/compress/zstdmt_compress.c
@@ -9,7 +9,7 @@
 
 
 /* ======   Tuning parameters   ====== */
-#define ZSTDMT_NBTHREADS_MAX 128
+#define ZSTDMT_NBTHREADS_MAX 256
 
 
 /* ======   Compiler specifics   ====== */