diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 4e4f040a36..68ee7a6624 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -5077,14 +5077,14 @@ adapted from transcriptomics.")
 (define-public r-dirichletmultinomial
   (package
     (name "r-dirichletmultinomial")
-    (version "1.38.0")
+    (version "1.40.0")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "DirichletMultinomial" version))
        (sha256
         (base32
-         "15l0h2qz80lmrm5rva3v7lkgddn42igyxxwims57zwpwyhrk9bmx"))))
+         "009nnl3zwcsg6mh7wl3j856dpi7awkyxdy660rqmiskn7m2ah4l1"))))
     (properties
      `((upstream-name . "DirichletMultinomial")))
     (build-system r-build-system)