diff --git a/deps/limonp b/deps/limonp
index 9d74077d..4065c5f6 160000
--- a/deps/limonp
+++ b/deps/limonp
@@ -1 +1 @@
-Subproject commit 9d74077dfcdf8073536c97a00bb79d7a3c3fdaba
+Subproject commit 4065c5f6d5a7a7248aacdd34d738fe0351b97c3f
diff --git a/include/cppjieba/Unicode.hpp b/include/cppjieba/Unicode.hpp
index 2d41f407..134c096d 100644
--- a/include/cppjieba/Unicode.hpp
+++ b/include/cppjieba/Unicode.hpp
@@ -1,6 +1,7 @@
 #ifndef CPPJIEBA_UNICODE_H
 #define CPPJIEBA_UNICODE_H
 
+#include <cassert>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string>