diff --git a/pkgs/applications/display-managers/ly/default.nix b/pkgs/applications/display-managers/ly/default.nix
index 35221c4637c7..d7089ecee755 100644
--- a/pkgs/applications/display-managers/ly/default.nix
+++ b/pkgs/applications/display-managers/ly/default.nix
@@ -31,7 +31,11 @@ stdenv.mkDerivation {
   ];
 
   postPatch = ''
-    ln -s ${callPackage ./deps.nix { }} $ZIG_GLOBAL_CACHE_DIR/p
+    ln -s ${
+      callPackage ./deps.nix {
+        zig = zig_0_12;
+      }
+    } $ZIG_GLOBAL_CACHE_DIR/p
   '';
 
   passthru.tests = { inherit (nixosTests) ly; };
diff --git a/pkgs/by-name/ca/cargo-lambda/package.nix b/pkgs/by-name/ca/cargo-lambda/package.nix
index 006da2416bcd..c9a9bddfb301 100644
--- a/pkgs/by-name/ca/cargo-lambda/package.nix
+++ b/pkgs/by-name/ca/cargo-lambda/package.nix
@@ -8,7 +8,7 @@
   pkg-config,
   openssl,
   stdenv,
-  zig,
+  zig_0_13,
   nix-update-script,
 }:
 
@@ -48,7 +48,7 @@ rustPlatform.buildRustPackage rec {
   '';
 
   postInstall = ''
-    wrapProgram $out/bin/cargo-lambda --prefix PATH : ${lib.makeBinPath [ zig ]}
+    wrapProgram $out/bin/cargo-lambda --prefix PATH : ${lib.makeBinPath [ zig_0_13 ]}
   '';
 
   CARGO_LAMBDA_BUILD_INFO = "(nixpkgs)";
diff --git a/pkgs/by-name/fl/flow-editor/package.nix b/pkgs/by-name/fl/flow-editor/package.nix
index a5631a0bd4be..2186ffded5e0 100644
--- a/pkgs/by-name/fl/flow-editor/package.nix
+++ b/pkgs/by-name/fl/flow-editor/package.nix
@@ -17,7 +17,11 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-D1pFP5tw323UJgWvLvh2sTiZG1hq5DP0FakdXEISRxs=";
   };
   postPatch = ''
-    ln -s ${callPackage ./build.zig.zon.nix { }} $ZIG_GLOBAL_CACHE_DIR/p
+    ln -s ${
+      callPackage ./build.zig.zon.nix {
+        zig = zig_0_13;
+      }
+    } $ZIG_GLOBAL_CACHE_DIR/p
   '';
 
   nativeBuildInputs = [
diff --git a/pkgs/by-name/gh/ghostty/package.nix b/pkgs/by-name/gh/ghostty/package.nix
index bf8359959186..eb48e995a235 100644
--- a/pkgs/by-name/gh/ghostty/package.nix
+++ b/pkgs/by-name/gh/ghostty/package.nix
@@ -60,6 +60,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   deps = callPackage ./deps.nix {
     name = "${finalAttrs.pname}-cache-${finalAttrs.version}";
+    zig = zig_0_13;
   };
 
   strictDeps = true;
diff --git a/pkgs/by-name/po/poop/package.nix b/pkgs/by-name/po/poop/package.nix
index 9b42801c5ebd..3edae8fb889b 100644
--- a/pkgs/by-name/po/poop/package.nix
+++ b/pkgs/by-name/po/poop/package.nix
@@ -2,7 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
-  zig,
+  zig_0_13,
 }:
 
 stdenv.mkDerivation rec {
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    zig.hook
+    zig_0_13.hook
   ];
 
   meta = with lib; {
diff --git a/pkgs/by-name/ri/river/package.nix b/pkgs/by-name/ri/river/package.nix
index b96f58a2fa7c..fb24693c0b45 100644
--- a/pkgs/by-name/ri/river/package.nix
+++ b/pkgs/by-name/ri/river/package.nix
@@ -37,7 +37,9 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-4ac0LGQtLldHyXJ2GIRMHV+VZfUrRFdBYLiAHX5lWcw=";
   };
 
-  deps = callPackage ./build.zig.zon.nix { };
+  deps = callPackage ./build.zig.zon.nix {
+    zig = zig_0_13;
+  };
 
   nativeBuildInputs = [
     pkg-config
diff --git a/pkgs/by-name/su/superhtml/package.nix b/pkgs/by-name/su/superhtml/package.nix
index 8844a03e9416..eff91d54a5a1 100644
--- a/pkgs/by-name/su/superhtml/package.nix
+++ b/pkgs/by-name/su/superhtml/package.nix
@@ -3,7 +3,7 @@
   callPackage,
   fetchFromGitHub,
   stdenv,
-  zig,
+  zig_0_13,
 }:
 stdenv.mkDerivation rec {
   pname = "superhtml";
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    zig.hook
+    zig_0_13.hook
   ];
 
   postPatch = ''
diff --git a/pkgs/by-name/wa/waylock/package.nix b/pkgs/by-name/wa/waylock/package.nix
index 53f8ff52e816..dce4eb51bfe6 100644
--- a/pkgs/by-name/wa/waylock/package.nix
+++ b/pkgs/by-name/wa/waylock/package.nix
@@ -26,7 +26,9 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-jfMSar+Y3inu1Cly6rIDw+akBJIQ6huL0smAstgQmEo=";
   };
 
-  deps = callPackage ./build.zig.zon.nix { };
+  deps = callPackage ./build.zig.zon.nix {
+    zig = zig_0_13;
+  };
 
   nativeBuildInputs = [
     pkg-config
diff --git a/pkgs/development/compilers/zig/default.nix b/pkgs/development/compilers/zig/default.nix
index 77884dbbdb78..ba6db99f5f8b 100644
--- a/pkgs/development/compilers/zig/default.nix
+++ b/pkgs/development/compilers/zig/default.nix
@@ -4,6 +4,7 @@
   llvmPackages_16,
   llvmPackages_17,
   llvmPackages_18,
+  llvmPackages_19,
   zigVersions ? { },
 }:
 let
@@ -20,6 +21,10 @@ let
       llvmPackages = llvmPackages_18;
       hash = "sha256-5qSiTq+UWGOwjDVZMIrAt2cDKHkyNPBSAEjpRQUByFM=";
     };
+    "0.14.0" = {
+      llvmPackages = llvmPackages_19;
+      hash = "sha256-VyteIp5ZRt6qNcZR68KmM7CvN2GYf8vj5hP+gHLkuVk=";
+    };
   } // zigVersions;
 
   mkPackage =
diff --git a/pkgs/development/compilers/zig/generic.nix b/pkgs/development/compilers/zig/generic.nix
index 65959289cb6c..84f83b5aa709 100644
--- a/pkgs/development/compilers/zig/generic.nix
+++ b/pkgs/development/compilers/zig/generic.nix
@@ -111,7 +111,11 @@ stdenv.mkDerivation (finalAttrs: {
     '';
 
   postBuild =
-    if lib.versionAtLeast finalAttrs.version "0.13" then
+    if lib.versionAtLeast finalAttrs.version "0.14" then
+      ''
+        stage3/bin/zig build langref --zig-lib-dir $(pwd)/stage3/lib/zig
+      ''
+    else if lib.versionAtLeast finalAttrs.version "0.13" then
       ''
         stage3/bin/zig build langref
       ''
diff --git a/pkgs/tools/misc/ncdu/default.nix b/pkgs/tools/misc/ncdu/default.nix
index 719d899e83bd..a0a724834b2b 100644
--- a/pkgs/tools/misc/ncdu/default.nix
+++ b/pkgs/tools/misc/ncdu/default.nix
@@ -4,7 +4,7 @@
   fetchurl,
   ncurses,
   pkg-config,
-  zig,
+  zig_0_13,
   zstd,
   installShellFiles,
   testers,
@@ -21,7 +21,7 @@ stdenv.mkDerivation (finalAttrs: {
   };
 
   nativeBuildInputs = [
-    zig.hook
+    zig_0_13.hook
     installShellFiles
     pkg-config
   ];
@@ -50,7 +50,7 @@ stdenv.mkDerivation (finalAttrs: {
       pSub
       rodrgz
     ];
-    inherit (zig.meta) platforms;
+    inherit (zig_0_13.meta) platforms;
     mainProgram = "ncdu";
   };
 })
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fdaad793c313..74a62d7fcf3e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10764,12 +10764,14 @@ with pkgs;
     zig_0_11 = zigPackages."0.11";
     zig_0_12 = zigPackages."0.12";
     zig_0_13 = zigPackages."0.13";
+    zig_0_14 = zigPackages."0.14";
   }) zigPackages
      zig_0_11
      zig_0_12
-     zig_0_13;
+     zig_0_13
+     zig_0_14;
 
-  zig = zig_0_13;
+  zig = zig_0_14;
 
   zigStdenv = if stdenv.cc.isZig then stdenv else lowPrio zig.passthru.stdenv;