--- a/taskcluster/ci/toolchain/linux.yml
+++ b/taskcluster/ci/toolchain/linux.yml
@@ -489,18 +489,17 @@ linux64-rust-1.28:
     worker:
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'x86_64-unknown-linux-gnu',
             '--target', 'x86_64-unknown-linux-gnu',
             '--target', 'i686-unknown-linux-gnu',
         ]
         toolchain-alias: linux64-rust
         toolchain-artifact: public/build/rustc.tar.xz
 
 linux64-rust-nightly:
@@ -537,18 +536,17 @@ linux64-rust-macos-1.28:
     worker:
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'x86_64-unknown-linux-gnu',
             '--target', 'x86_64-unknown-linux-gnu',
             '--target', 'x86_64-apple-darwin',
         ]
         toolchain-alias: linux64-rust-macos
         toolchain-artifact: public/build/rustc.tar.xz
 
 linux64-rust-android-1.28:
@@ -562,18 +560,17 @@ linux64-rust-android-1.28:
     worker:
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'x86_64-unknown-linux-gnu',
             '--target', 'x86_64-unknown-linux-gnu',
             '--target', 'armv7-linux-androideabi',
             '--target', 'aarch64-linux-android',
             '--target', 'i686-linux-android',
         ]
         toolchain-alias: linux64-rust-android
         toolchain-artifact: public/build/rustc.tar.xz

--- a/taskcluster/ci/toolchain/windows.yml
+++ b/taskcluster/ci/toolchain/windows.yml
@@ -130,18 +130,17 @@ win64-rust-1.28:
         docker-image: {in-tree: toolchain-build}
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'x86_64-pc-windows-msvc',
             '--target', 'x86_64-pc-windows-msvc',
             '--target', 'i686-pc-windows-msvc',
         ]
         toolchain-alias: win64-rust
         toolchain-artifact: public/build/rustc.tar.bz2
 
 win64-rust-nightly:
@@ -197,18 +196,17 @@ win32-rust-1.28:
         docker-image: {in-tree: toolchain-build}
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'i686-pc-windows-msvc',
             '--target', 'i686-pc-windows-msvc',
         ]
         toolchain-alias: win32-rust
         toolchain-artifact: public/build/rustc.tar.bz2
 
 mingw32-rust-1.28:
     description: "rust repack"
@@ -222,18 +220,17 @@ mingw32-rust-1.28:
         docker-image: {in-tree: toolchain-build}
         max-run-time: 7200
         env:
             UPLOAD_DIR: artifacts
     run:
         using: toolchain-script
         script: repack_rust.py
         arguments: [
-            # 1.28.0-beta.6
-            '--channel', 'beta-2018-06-30',
+            '--channel', '1.28.0',
             '--host', 'x86_64-unknown-linux-gnu',
             '--target', 'i686-unknown-linux-gnu',
             '--target', 'i686-pc-windows-gnu',
             '--target', 'x86_64-pc-windows-gnu',
             '--target', 'x86_64-unknown-linux-gnu',
         ]
         toolchain-alias: mingw32-rust
         toolchain-artifact: public/build/rustc.tar.xz