diff --git a/.gitignore b/.gitignore
index 86a0170..9bc4420 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ m17n-lib-1.6.1.tar.gz
 /m17n-lib-1.8.2.tar.gz
 /m17n-lib-1.8.3.tar.gz
 /m17n-lib-1.8.4.tar.gz
+/m17n-lib-1.8.5.tar.gz
diff --git a/m17n-lib.spec b/m17n-lib.spec
index 7754ca5..c74e1e2 100644
--- a/m17n-lib.spec
+++ b/m17n-lib.spec
@@ -6,7 +6,7 @@
 %endif
 
 Name:           m17n-lib
-Version:        1.8.4
+Version:        1.8.5
 Release:        %autorelease
 Summary:        Multilingual text library
 
@@ -29,7 +29,7 @@ BuildRequires:  automake libtool
 Provides: bundled(gnulib)
 
 %if %{with anthy}
-BuildRequires:  anthy-devel
+BuildRequires:  anthy-unicode-devel
 %endif
 
 Requires:       m17n-db
diff --git a/sources b/sources
index eb1e9ea..88ccfa8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (m17n-lib-1.8.4.tar.gz) = 7e322788aed8a758a8c289112433aabccd12dacf14b247ba9060503bcc44930c9251f0c4e718987b9a151de097e72bc1e07c8096f7f4ad83a7d7183a549721d6
+SHA512 (m17n-lib-1.8.5.tar.gz) = 047e69b911b24094fc379127dae14438a7f27b60d312aee505bb3805a556ecec6d909c620a8f6fc25285c9fcaf0eda0d53c53811b04dbf5df37d55fe5efc4caa