diff --git a/lib/SPTK b/lib/SPTK
index 49a4b35..2accca9 160000
--- a/lib/SPTK
+++ b/lib/SPTK
@@ -1 +1 @@
-Subproject commit 49a4b35dcf6c4114a7ec8a8a48bb5038a756941e
+Subproject commit 2accca99be205d10fde0a4b9969cc3eba7ad930e