diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index f8e7714813..5407067f7a 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -31030,14 +31030,14 @@ (define-public r-diversitree
 (define-public r-calculus
   (package
     (name "r-calculus")
-    (version "0.3.4")
+    (version "1.0.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "calculus" version))
        (sha256
         (base32
-         "0hpibnbxl3ngfgzxq8cp9hxsn1yv03dnxyycm3gkr5iv5gkbbpw9"))))
+         "18w64jp6ah2q09242bsnszjl2adqmcs4b0w44ixrc74rjjxwp1cd"))))
     (properties `((upstream-name . "calculus")))
     (build-system r-build-system)
     (propagated-inputs