diff --git a/koreader-base b/koreader-base
index 1570f78e6..f4f4fba83 160000
--- a/koreader-base
+++ b/koreader-base
@@ -1 +1 @@
-Subproject commit 1570f78e6e538a3ebc0e9ababad501d6c3176d33
+Subproject commit f4f4fba83a286e5db146945c4f6bfd6d43abb150