diff --git a/extern/lstm b/extern/lstm
index df22549225..6e61b3b90b 160000
--- a/extern/lstm
+++ b/extern/lstm
@@ -1 +1 @@
-Subproject commit df22549225754025432572709d43f4724219a52b
+Subproject commit 6e61b3b90b64fbee308faae25a6997d1059ea95f