diff --git a/pkgs/applications/networking/mailreaders/notmuch/default.nix b/pkgs/applications/networking/mailreaders/notmuch/default.nix
index 87ad4a015fd8..7046c701914d 100644
--- a/pkgs/applications/networking/mailreaders/notmuch/default.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch/default.nix
@@ -16,11 +16,11 @@
 
 stdenv.mkDerivation rec {
   pname = "notmuch";
-  version = "0.38";
+  version = "0.38.1";
 
   src = fetchurl {
     url = "https://notmuchmail.org/releases/notmuch-${version}.tar.xz";
-    sha256 = "sha256-oXkBrb5D9IGmv1PBWiogJovI3HrVzPaFoNF8FFbbr24=";
+    hash = "sha256-wUGHYNDlPvrR81Jn65mlD4t/ooVcFHPgpMmCuG+OzdQ=";
   };
 
   nativeBuildInputs = [
@@ -135,7 +135,7 @@ stdenv.mkDerivation rec {
 
     updateScript = gitUpdater {
       url = "https://git.notmuchmail.org/git/notmuch";
-      ignoredVersions = "_rc.*";
+      ignoredVersions = "_(rc|pre).*";
     };
   };