diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index b80ead27e3..021e525c45 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -1860,7 +1860,7 @@ (define-public libngspice
   ;; See <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27344#236>.
   (package
     (name "libngspice")
-    (version "38")
+    (version "40")
     (source
      (origin
        (method url-fetch)
@@ -1871,7 +1871,7 @@ (define-public libngspice
                             "old-releases/" version
                             "/ngspice-" version ".tar.gz")))
        (sha256
-        (base32 "0mkw66d2isyyxssziwramd08amd7l1qm6dfg86r5s5kvqkv24gic"))))
+        (base32 "03c9irc44msdpqhbn2fhvb4g0sry8a2qgxl4mbbf557mq1xwl0z3"))))
     (build-system gnu-build-system)
     (arguments
      `(;; No tests for libngspice exist.