diff --git a/pkgs/data/misc/cacert/default.nix b/pkgs/data/misc/cacert/default.nix
index 49645ee80083..4e9925147a35 100644
--- a/pkgs/data/misc/cacert/default.nix
+++ b/pkgs/data/misc/cacert/default.nix
@@ -20,7 +20,7 @@ let
   blocklist = writeText "cacert-blocklist.txt" (lib.concatStringsSep "\n" blacklist);
   extraCertificatesBundle = writeText "cacert-extra-certificates-bundle.crt" (lib.concatStringsSep "\n\n" extraCertificateStrings);
 
-  srcVersion = "3.71";
+  srcVersion = "3.74";
   version = if nssOverride != null then nssOverride.version else srcVersion;
   meta = with lib; {
     homepage = "https://curl.haxx.se/docs/caextract.html";
@@ -35,7 +35,7 @@ let
 
     src = if nssOverride != null then nssOverride.src else fetchurl {
       url = "mirror://mozilla/security/nss/releases/NSS_${lib.replaceStrings ["."] ["_"] version}_RTM/src/nss-${version}.tar.gz";
-      sha256 = "0ly2l3dv6z5hlxs72h5x6796ni3x1bq60saavaf42ddgv4ax7b4r";
+      sha256 = "0mnhdkm4galhpvfz4rv0918jwmjlwkvcvb1f5va8f3zlz48qi4l8";
     };
 
     dontBuild = true;
diff --git a/pkgs/development/libraries/nss/default.nix b/pkgs/development/libraries/nss/default.nix
index e5819e1d75ee..e92b3dec07be 100644
--- a/pkgs/development/libraries/nss/default.nix
+++ b/pkgs/development/libraries/nss/default.nix
@@ -27,7 +27,7 @@ let
   #       It will rebuild itself using the version of this package (NSS) and if
   #       an update is required do the required changes to the expression.
   #       Example: nix-shell ./maintainers/scripts/update.nix --argstr package cacert
-  version = "3.73.1";
+  version = "3.74";
 
 in
 stdenv.mkDerivation rec {
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "mirror://mozilla/security/nss/releases/NSS_${lib.replaceStrings [ "." ] [ "_" ] version}_RTM/src/${pname}-${version}.tar.gz";
-    sha256 = "x2j5/jEp6LzC6WeUVtft2UU6IleEqPx9xFAYBvH+mr4=";
+    sha256 = "0mnhdkm4galhpvfz4rv0918jwmjlwkvcvb1f5va8f3zlz48qi4l8";
   };
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];