diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 4226acfe9a..d9298d0ab7 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -12407,14 +12407,14 @@ (define-public r-learnbayes
 (define-public r-deldir
   (package
     (name "r-deldir")
-    (version "0.1-16")
+    (version "0.1-21")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "deldir" version))
        (sha256
         (base32
-         "0549kj0hlkdyvm5axsm3np30wg53fm2pxybijzw0avlgsd2y2n2q"))))
+         "03392pl6j8rm3n32xrfkyfx866k1vm5sj87pva70yyiwh70vrnmr"))))
     (build-system r-build-system)
     (native-inputs `(("gfortran" ,gfortran)))
     (home-page "https://cran.r-project.org/web/packages/deldir")