diff --git a/gnu/packages/assembly.scm b/gnu/packages/assembly.scm
index 9db1834d27..dbed33bb3d 100644
--- a/gnu/packages/assembly.scm
+++ b/gnu/packages/assembly.scm
@@ -342,7 +342,7 @@ (define-public rgbds
 (define-public wla-dx
   (package
     (name "wla-dx")
-    (version "9.11")
+    (version "9.12")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -351,7 +351,7 @@ (define-public wla-dx
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0i8pxvyaih79pqnyvqyqd9rwdid91pna76cap0k1n5zhg8xswf2f"))))
+                "1wlbqv2rgk9q6m9an1mi0i29250zl8lw7zipki2bbi9mczpyczli"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("sphinx" ,python-sphinx)))      ; to generate man pages