diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 5eca8c3770..30b19f8bf4 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -12370,14 +12370,14 @@ (define-public r-th-data
 (define-public r-multcomp
   (package
     (name "r-multcomp")
-    (version "1.4-19")
+    (version "1.4-20")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "multcomp" version))
        (sha256
         (base32
-         "0mz5wdqrqpp2gqijfpp9rgfbq8yvxki4is8fbbc4qwdwryqp6d7h"))))
+         "1z1cqklahnp4qi48r335xlqvw7h7xbjrlpb4pjky9gc987xf92rj"))))
     (build-system r-build-system)
     (propagated-inputs
      (list r-codetools r-mvtnorm r-sandwich r-survival r-th-data))