diff --git a/libscan/arc/arc.h b/libscan/arc/arc.h
index 371a4e0..ea5a803 100644
--- a/libscan/arc/arc.h
+++ b/libscan/arc/arc.h
@@ -20,7 +20,7 @@ typedef struct {
     log_callback_t log;
     logf_callback_t logf;
     store_callback_t store;
-    char passphrase[1024];
+    char passphrase[4096];
 } scan_arc_ctx_t;
 
 #define ARC_BUF_SIZE 8192
diff --git a/test/main.cpp b/test/main.cpp
index 6da8840..001a8b8 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -602,8 +602,11 @@ TEST(Arc, EncryptedZip) {
 
     size_t size_before = store_size;
 
+    strcpy(arc_recurse_media_ctx.passphrase, "sist2");
     parse_archive(&arc_recurse_media_ctx, &f, &doc);
 
+    arc_recurse_media_ctx.passphrase[0] = '\0';
+
     ASSERT_NE(size_before, store_size);
 
     cleanup(&doc, &f);
diff --git a/third-party/utf8.h b/third-party/utf8.h
index a67acc7..42f5b90 160000
--- a/third-party/utf8.h
+++ b/third-party/utf8.h
@@ -1 +1 @@
-Subproject commit a67acc78fd0fc272ad45362b828efdcb24874e64
+Subproject commit 42f5b90d44571ef84b528555a72e819d5ed1f6c6