diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 121b13c115..6814b47b13 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -7283,7 +7283,7 @@ (define-public ocaml4.07-spawn
 (define-public ocaml-core
   (package
     (name "ocaml-core")
-    (version "0.15.0")
+    (version "0.15.1")
     (source
       (origin
         (method git-fetch)
@@ -7292,7 +7292,7 @@ (define-public ocaml-core
                (commit (string-append "v" version))))
         (file-name (git-file-name name version))
         (sha256
-          (base32 "1m2ybvlz9zlb2d0jc0j7wdgd18mx9sh3ds2ylkv0cfjx1pzi0l25"))))
+          (base32 "17vc2i5qb53dr0civ8pkrnnsn2nkydlq44ash7fhh93yb4sffy28"))))
     (build-system dune-build-system)
     (arguments
      `(#:package "core"