diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 7ea4ca3066..d37897da20 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1512,14 +1512,14 @@ associated functions (eg. contiguous and non-contiguous submatrix views).")
 
 (define-public armadillo-for-rcpparmadillo
   (package (inherit armadillo)
-    (version "6.200.2")
+    (version "6.700.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/arma/armadillo-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1f69rlqhnf2wv8khyn2a8vi6gx1i72qgfy8b9b760ssk85dcl763"))))))
+                "1vnhifa7d0aij3kv5bxf6m91d99h3y2fyj48jrx7jcvwyb1q5wwq"))))))
 
 (define-public muparser
   (package
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index bb2e09d2fe..2178984d04 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -1600,13 +1600,13 @@ well as additional utilities such as panel and axis annotation functions.")
 (define-public r-rcpparmadillo
   (package
     (name "r-rcpparmadillo")
-    (version "0.6.200.2.0")
+    (version "0.6.700.3.0")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "RcppArmadillo" version))
               (sha256
                (base32
-                "137wqqga776yj6synx5awhrzgkz7mmqnvgmggh9l4k6d99vwp9gj"))
+                "1mc62b6my568ni18w4clgs6l6ggqrwzsm3lgx0c1prf4rap69s8w"))
               (modules '((guix build utils)))
               ;; Remove bundled armadillo sources
               (snippet