diff --git a/repos/libports/ports/fatfs.hash b/repos/libports/ports/fatfs.hash
index d304b7a49d..2aa9fd32f8 100644
--- a/repos/libports/ports/fatfs.hash
+++ b/repos/libports/ports/fatfs.hash
@@ -1 +1 @@
-b1fa5af94c960b4b2f9b96cace90ad19bdb3f402
+973b91980a4eff6f47c81e4a2de8d94726fc2ffc
diff --git a/repos/libports/ports/fatfs.port b/repos/libports/ports/fatfs.port
index 1aadb780da..c530ac6b89 100644
--- a/repos/libports/ports/fatfs.port
+++ b/repos/libports/ports/fatfs.port
@@ -3,7 +3,7 @@ VERSION   := 0.13b
 DOWNLOADS := fatfs.archive
 
 URL(fatfs) := http://www.elm-chan.org/fsw/ff/arc/ff13b.zip
-SHA(fatfs) := 6cc9673ddb5a4d34ca526a72a5e4914d5be4465ef426c4ba55f2465bd0617318
+SHA(fatfs) := 43a577724e5595d73c643891cb2959919885b458149794a085a98254784f5a9b
 DIR(fatfs) := src/lib/fatfs
 
 DIRS := include/fatfs