diff --git a/gnu/packages/prolog.scm b/gnu/packages/prolog.scm
index 9b6611f8a8..8bc2fced9e 100644
--- a/gnu/packages/prolog.scm
+++ b/gnu/packages/prolog.scm
@@ -182,7 +182,7 @@ it.")
 (define-public trealla
   (package
     (name "trealla")
-    (version "2.71.4")
+    (version "2.71.21")
     (source
      (origin
        (method git-fetch)
@@ -191,7 +191,7 @@ it.")
          (url "https://github.com/trealla-prolog/trealla")
          (commit (string-append "v" version))))
        (sha256
-        (base32 "1j8yp1092b96k8pqgi3dcfnc4gpcp03z6hd18ldkm50px3nvbq4c"))
+        (base32 "0ig9zalf98h7vff5jgm8k4p3w0bw6kyz6q45bvkq5d636whlh3dq"))
        (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (native-inputs