diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index ba69f89e75..92c693544d 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -583,7 +583,7 @@ by GDBus included in Glib.")
 (define libsigc++
   (package
     (name "libsigc++")
-    (version "2.10.2")
+    (version "2.10.3")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnome/sources/libsigc++/"
@@ -591,7 +591,7 @@ by GDBus included in Glib.")
                                  name "-" version ".tar.xz"))
              (sha256
               (base32
-               "163s14d1rqp82gc1vsm3q0wzsbdicb9q6307kz0zk5lm6x9h5jmi"))))
+               "11j7j1jv4z58d9s7jvl42fnqa1dzl4idgil9r45cjv1w673dys0b"))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)
                      ("m4" ,m4)))