diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 33f0828c54..b94a7e4ea4 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -8777,14 +8777,14 @@ in SNV base substitution data.")
 (define-public r-wgcna
   (package
     (name "r-wgcna")
-    (version "1.63")
+    (version "1.66")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "WGCNA" version))
        (sha256
         (base32
-         "1225dqm68bynkmklnsxdqdd3zqrpzbvqwyly8ibxmk75z33xz309"))))
+         "0rhnyhzfn93yp24jz9v6dzrmyizwzdw070a7idm0k33w1cm8sjqv"))))
     (properties `((upstream-name . "WGCNA")))
     (build-system r-build-system)
     (propagated-inputs