diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 0d303dc53e..b9d1dce97a 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -4108,7 +4108,7 @@ (define-public jacal
 (define-public z3
   (package
     (name "z3")
-    (version "4.8.6")
+    (version "4.8.7")
     (home-page "https://github.com/Z3Prover/z3")
     (source (origin
               (method git-fetch)
@@ -4117,7 +4117,7 @@ (define-public z3
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "1sywcqj5y8yp28m4cdvzsgw74kd6zr1s3y1x17ky8pr9prvpvl6x"))))
+                "0hprcdwhhyjigmhhk6514m71bnmvqci9r8gglrqilgx424r6ff7q"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases