# Backport the Linux zlib package pins and mirrors from rules_rs v0.2.2.
# https://github.com/hermeticbuild/rules_rs/commit/4c3d6ecc8fe94d373b818366ac3c52a31fffa277

diff --git a/rs/private/rustc_repository.bzl b/rs/private/rustc_repository.bzl
--- a/rs/private/rustc_repository.bzl
+++ b/rs/private/rustc_repository.bzl
@@ -56,18 +56,20 @@ filegroup(
 _LINUX_ZLIB = {
     "aarch64": struct(
         libdir = "usr/lib/aarch64-linux-gnu",
-        sha256 = "e55ab3b4fb7b6edc4a628e28ec13f8780b08abe427d33ae148f030d8586d0e9a",
+        sha256 = "84536bcf440cf0f988899b24b6c7df32cb9ff9f0dfa97d5e7efcc2dc088d15dc",
         urls = [
-            "https://launchpad.net/ubuntu/+archive/primary/+files/zlib1g_1.3.dfsg-3.1ubuntu2.2_arm64.deb",
-            "https://snapshot.ubuntu.com/ubuntu/20260901T000000Z/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.2_arm64.deb",
+            "https://ports.ubuntu.com/ubuntu-ports/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.3_arm64.deb",
+            "https://launchpad.net/ubuntu/+archive/primary/+files/zlib1g_1.3.dfsg-3.1ubuntu2.3_arm64.deb",
+            "https://snapshot.ubuntu.com/ubuntu/20261110T000000Z/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.3_arm64.deb",
         ],
     ),
     "x86_64": struct(
         libdir = "usr/lib/x86_64-linux-gnu",
-        sha256 = "84b9cf5752b29c9f92c27cd4c4ba9bbcc70b5ccf9b1b515421a28ae23212e273",
+        sha256 = "376249c8de139568221dbb242318cc8cb8f02299e3a62b7432948e1754fbddf9",
         urls = [
-            "https://launchpad.net/ubuntu/+archive/primary/+files/zlib1g_1.3.dfsg-3.1ubuntu2.2_amd64.deb",
-            "https://snapshot.ubuntu.com/ubuntu/20260901T000000Z/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.2_amd64.deb",
+            "https://archive.ubuntu.com/ubuntu/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.3_amd64.deb",
+            "https://launchpad.net/ubuntu/+archive/primary/+files/zlib1g_1.3.dfsg-3.1ubuntu2.3_amd64.deb",
+            "https://snapshot.ubuntu.com/ubuntu/20261110T000000Z/pool/main/z/zlib/zlib1g_1.3.dfsg-3.1ubuntu2.3_amd64.deb",
         ],
     ),
 }