diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index c889433b41..9cc35ac5ec 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -522,14 +522,14 @@ a C program.")
 (define-public fftw
   (package
     (name "fftw")
-    (version "3.3.7")
+    (version "3.3.8")
     (source (origin
              (method url-fetch)
              (uri (string-append "ftp://ftp.fftw.org/pub/fftw/fftw-"
                                  version".tar.gz"))
              (sha256
               (base32
-               "0wsms8narnbhfsa8chdflv2j9hzspvflblnqdn7hw8x5xdzrnq1v"))))
+               "00z3k8fq561wq2khssqg0kallk0504dzlx989x3vvicjdqpjc4v1"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags