diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 83facdd259..d5d79f686b 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -9767,14 +9767,14 @@ (define-public r-nnls
 (define-public r-iso
   (package
     (name "r-iso")
-    (version "0.0-17")
+    (version "0.0-18")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "Iso" version))
        (sha256
         (base32
-         "0lljc99sdzdqj6d56qbsggibr6pkdwkh821bj70ianikyvmdc1y0"))))
+         "014mm5b1f7i6nwlz3kyg1biph0y542kcx5bd13p68cv5a928qzid"))))
     (properties `((upstream-name . "Iso")))
     (build-system r-build-system)
     (native-inputs `(("gfortran" ,gfortran)))