diff --git a/sources b/sources
index 6120e18..4cd9d71 100644
--- a/sources
+++ b/sources
@@ -1,3 +1 @@
-195b16500349f874dd094fa7cccd7a6c  m17n-lib-1.4.0.tar.gz
-950bbb57a317870e49c6b1c0ad0337cc  m17n-lib-1.5.0.tar.gz
 1fc48e2e2f42a6bb966026b61834d089  m17n-lib-1.5.1.tar.gz