diff --git a/info.rkt b/info.rkt
index 51e6e65..066904a 100644
--- a/info.rkt
+++ b/info.rkt
@@ -11,5 +11,5 @@
 (define scribblings '(("scribblings/audio-library-manager.scrbl" ())))
 (define build-deps '("rackunit-lib" "scribble-lib" "racket-doc"))
 (define pkg-desc "Audio library maintenance tools for FLAC and Opus trees")
-(define version "0.1")
+(define version "0.1.1")
 (define pkg-authors '(hans-dijkema))
diff --git a/private/hash.rkt b/private/hash.rkt
index 586eda8..0136126 100644
--- a/private/hash.rkt
+++ b/private/hash.rkt
@@ -1,7 +1,8 @@
 #lang racket/base
 
-(require openssl/sha1
-         openssl/md5)
+; No external crypto package dependency: sha256-bytes is provided by racket/base.
+(require file/sha1
+         file/md5)
 
 (provide file-digest)