diff --git a/pkgs/by-name/mu/mullvad-browser/package.nix b/pkgs/by-name/mu/mullvad-browser/package.nix
index 879c487038f3..028a70fe6c14 100644
--- a/pkgs/by-name/mu/mullvad-browser/package.nix
+++ b/pkgs/by-name/mu/mullvad-browser/package.nix
@@ -97,7 +97,7 @@ let
     ++ lib.optionals mediaSupport [ ffmpeg ]
   );
 
-  version = "14.5.3";
+  version = "14.5.4";
 
   sources = {
     x86_64-linux = fetchurl {
@@ -109,7 +109,7 @@ let
         "https://tor.eff.org/dist/mullvadbrowser/${version}/mullvad-browser-linux-x86_64-${version}.tar.xz"
         "https://tor.calyxinstitute.org/dist/mullvadbrowser/${version}/mullvad-browser-linux-x86_64-${version}.tar.xz"
       ];
-      hash = "sha256-W005Lkgw96sYseB8LBE76b7+RxMC5vNb1+3KrDp8IE0=";
+      hash = "sha256-DJEc+2GJHxG49euVpwH8h/yLoR6DVn0a0ZUFS429XaA=";
     };
   };
 
diff --git a/pkgs/by-name/to/tor-browser/package.nix b/pkgs/by-name/to/tor-browser/package.nix
index 86d18be0fa64..d185f91634f7 100644
--- a/pkgs/by-name/to/tor-browser/package.nix
+++ b/pkgs/by-name/to/tor-browser/package.nix
@@ -111,7 +111,7 @@ lib.warnIf (useHardenedMalloc != null)
         ++ lib.optionals mediaSupport [ ffmpeg ]
       );
 
-      version = "14.5.3";
+      version = "14.5.4";
 
       sources = {
         x86_64-linux = fetchurl {
@@ -121,7 +121,7 @@ lib.warnIf (useHardenedMalloc != null)
             "https://tor.eff.org/dist/torbrowser/${version}/tor-browser-linux-x86_64-${version}.tar.xz"
             "https://tor.calyxinstitute.org/dist/torbrowser/${version}/tor-browser-linux-x86_64-${version}.tar.xz"
           ];
-          hash = "sha256-1MgXLdoRrmwFAG2JtkCUa2NQ/H3Xxd9+2jbV+fRRVXA=";
+          hash = "sha256-27Wq9VwFB85swQZIRQMKZgeUeb/SgQ04aaWmZtlpY9s=";
         };
 
         i686-linux = fetchurl {
@@ -131,7 +131,7 @@ lib.warnIf (useHardenedMalloc != null)
             "https://tor.eff.org/dist/torbrowser/${version}/tor-browser-linux-i686-${version}.tar.xz"
             "https://tor.calyxinstitute.org/dist/torbrowser/${version}/tor-browser-linux-i686-${version}.tar.xz"
           ];
-          hash = "sha256-T6BdLhEXYzo3zIJZ2aREjAWmIRDV/xtVhVvkDUozoo4=";
+          hash = "sha256-OgexrnQWGYSf9g3Le/LyBcpGo3xFqpCMq1NUHF5fi9M=";
         };
       };