diff --git a/pkgs/by-name/mu/mullvad-browser/package.nix b/pkgs/by-name/mu/mullvad-browser/package.nix
index f718e178f988..241cfe2420bd 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_7 ]
   );
 
-  version = "15.0.16";
+  version = "15.0.18";
 
   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-mlQUAdGcOUbqReROqhs4fwSUmTZqQAEhwsg6ulM2hx4=";
+      hash = "sha256-hvLft1HDj/5NgAfQb1igYdhJN5H/jZ2+7s/JKKLf4Gs=";
     };
   };
 
diff --git a/pkgs/by-name/to/tor-browser/package.nix b/pkgs/by-name/to/tor-browser/package.nix
index 94533b096c75..353662fe970c 100644
--- a/pkgs/by-name/to/tor-browser/package.nix
+++ b/pkgs/by-name/to/tor-browser/package.nix
@@ -102,7 +102,7 @@ let
     ++ lib.optionals mediaSupport [ ffmpeg_7 ]
   );
 
-  version = "15.0.17";
+  version = "15.0.18";
 
   sources = {
     x86_64-linux = fetchurl {
@@ -112,7 +112,7 @@ let
         "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-WJFDd+DVj4oKHjv7py3yVrttrrCHFcHJbyvLNOwCjhs=";
+      hash = "sha256-4e7G8M/iKU65ECMVhxGjaJwHfwVZ49RD7ro6YJT43v0=";
     };
 
     i686-linux = fetchurl {
@@ -122,7 +122,7 @@ let
         "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-pKmAKDWutSp7ptJ66PMiS59aV+pRs3Oz9pV64kRuebI=";
+      hash = "sha256-lLShsQQ2thSSp4PRK9Fhza6e01Myj2mUP4qqCeyilXo=";
     };
   };