diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
index 02a6cdab..07d74b03 100644
--- a/lib/includes/nghttp2/nghttp2.h
+++ b/lib/includes/nghttp2/nghttp2.h
@@ -359,7 +359,7 @@ typedef enum {
  * @macro
  * Default maximum concurrent streams.
  */
-#define NGHTTP2_INITIAL_MAX_CONCURRENT_STREAMS 100
+#define NGHTTP2_INITIAL_MAX_CONCURRENT_STREAMS ((1U << 31) - 1)
 
 /**
  * @enum