diff --git a/pkgs/by-name/zi/zig-shell-completions/package.nix b/pkgs/by-name/zi/zig-shell-completions/package.nix
index 6cdf02712a31..ca2e9b50da3b 100644
--- a/pkgs/by-name/zi/zig-shell-completions/package.nix
+++ b/pkgs/by-name/zi/zig-shell-completions/package.nix
@@ -1,7 +1,7 @@
 {
   lib,
   stdenv,
-  fetchFromGitHub,
+  fetchFromGitea,
   installShellFiles,
   unstableGitUpdater,
 }:
@@ -10,7 +10,8 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "zig-shell-completions";
   version = "0-unstable-2025-06-29";
 
-  src = fetchFromGitHub {
+  src = fetchFromGitea {
+    domain = "codeberg.org";
     owner = "ziglang";
     repo = "shell-completions";
     rev = "4f91bcbe28cec28ff707d5e032333cbdbfa01161";
@@ -34,7 +35,7 @@ stdenv.mkDerivation (finalAttrs: {
   passthru.updateScript = unstableGitUpdater { };
 
   meta = {
-    homepage = "https://github.com/ziglang/shell-completions";
+    homepage = "https://codeberg.org/ziglang/shell-completions";
     description = "Shell completions for the Zig compiler";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ aaronjheng ];
diff --git a/pkgs/development/compilers/zig/generic.nix b/pkgs/development/compilers/zig/generic.nix
index 8d6af23eae29..3e9d5143824b 100644
--- a/pkgs/development/compilers/zig/generic.nix
+++ b/pkgs/development/compilers/zig/generic.nix
@@ -1,7 +1,7 @@
 {
   lib,
   stdenv,
-  fetchFromGitHub,
+  fetchFromGitea,
   cmake,
   llvmPackages,
   xcbuild,
@@ -23,7 +23,8 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "zig";
   inherit version;
 
-  src = fetchFromGitHub {
+  src = fetchFromGitea {
+    domain = "codeberg.org";
     owner = "ziglang";
     repo = "zig";
     rev = finalAttrs.version;