diff --git a/eng/pipelines/common/templates/pipeline-with-resources.yml b/eng/pipelines/common/templates/pipeline-with-resources.yml
index 90851b8d725ee6..18bcf3a5e5ff05 100644
--- a/eng/pipelines/common/templates/pipeline-with-resources.yml
+++ b/eng/pipelines/common/templates/pipeline-with-resources.yml
@@ -79,10 +79,9 @@ extends:
         env:
           ROOTFS_DIR: /crossrootfs/x64
 
-      # We use a CentOS Stream 8 image here to test building from source on CentOS Stream 8.
+      # We use a CentOS Stream image here to test building from source on CentOS Stream
       SourceBuild_centos_x64:
-        image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8
-
+        image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9
       # AlmaLinux 8 is a RHEL 8 rebuild, so we use it to test building from source on RHEL 8.
       SourceBuild_linux_x64:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:almalinux-8-source-build
@@ -106,7 +105,7 @@ extends:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-gcc14-amd64
 
       linux_x64_llvmaot:
-        image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8
+        image: mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9
 
       browser_wasm:
         image: mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-net9.0-webassembly-amd64
diff --git a/eng/pipelines/libraries/helix-queues-setup.yml b/eng/pipelines/libraries/helix-queues-setup.yml
index b94b108d03f6b8..13b30af22e8682 100644
--- a/eng/pipelines/libraries/helix-queues-setup.yml
+++ b/eng/pipelines/libraries/helix-queues-setup.yml
@@ -36,7 +36,7 @@ jobs:
     - ${{ if eq(parameters.platform, 'linux_arm64') }}:
       - (Ubuntu.2204.Arm64.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-helix-arm64v8
       - ${{ if or(ne(parameters.jobParameters.isExtraPlatformsBuild, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
-        - (Debian.11.Arm64.Open)Ubuntu.2204.Armarch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-helix-arm64v8
+        - (Debian.12.Arm64.Open)Ubuntu.2204.Armarch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-arm64v8
 
     # Linux musl x64
     - ${{ if eq(parameters.platform, 'linux_musl_x64') }}:
@@ -54,10 +54,10 @@ jobs:
       - ${{ if and(eq(parameters.jobParameters.interpreter, ''), ne(parameters.jobParameters.isSingleFile, true)) }}:
         - ${{ if and(eq(parameters.jobParameters.testScope, 'outerloop'), eq(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
           - SLES.15.Amd64.Open
-          - (Centos.8.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8-helix
+          - (Centos.9.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9-helix
           - (Fedora.41.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-41-helix
           - (Ubuntu.2204.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-helix-amd64
-          - (Debian.11.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-helix-amd64
+          - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
         - ${{ if or(ne(parameters.jobParameters.testScope, 'outerloop'), ne(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
           - ${{ if or(eq(parameters.jobParameters.isExtraPlatformsBuild, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
             - SLES.15.Amd64.Open
@@ -66,14 +66,14 @@ jobs:
             - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
             - (Mariner.2.0.Amd64.Open)Ubuntu.2204.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:cbl-mariner-2.0-helix-amd64
             - (AzureLinux.3.0.Amd64.Open)Ubuntu.2204.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:azurelinux-3.0-helix-amd64
-            - (openSUSE.15.2.Amd64.Open)Ubuntu.2204.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-15.2-helix-amd64
+            - (openSUSE.15.6.Amd64.Open)Ubuntu.2204.Amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:opensuse-15.6-helix-amd64
           - ${{ if or(ne(parameters.jobParameters.isExtraPlatformsBuild, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
-            - (Centos.8.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream8-helix
+            - (Centos.9.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9-helix
             - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
             - Ubuntu.2204.Amd64.Open
       - ${{ if or(eq(parameters.jobParameters.interpreter, 'true'), eq(parameters.jobParameters.isSingleFile, true)) }}:
         # Limiting interp runs as we don't need as much coverage.
-        - (Debian.11.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-helix-amd64
+        - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
 
     # Linux s390x
     - ${{ if eq(parameters.platform, 'linux_s390x') }}: