diff --git a/.bcachefs_revision b/.bcachefs_revision
index f4b1fb4b..7354361c 100644
--- a/.bcachefs_revision
+++ b/.bcachefs_revision
@@ -1 +1 @@
-4837f82ee1a0eaa2fe7c161c940f672c9e52afb6
+8a316f4112c5aa4b3c2c4745fa83475dbec8a959
diff --git a/libbcachefs/btree_types.h b/libbcachefs/btree_types.h
index ba47f512..ea25b04b 100644
--- a/libbcachefs/btree_types.h
+++ b/libbcachefs/btree_types.h
@@ -298,7 +298,7 @@ struct btree_key_cache {
 struct bkey_cached_key {
 	u32			btree_id;
 	struct bpos		pos;
-} __packed;
+} __attribute__((packed, aligned(4)));
 
 #define BKEY_CACHED_DIRTY		0