diff --git a/.github/workflows/lint-and-build-code.yml b/.github/workflows/lint-and-build-code.yml
index 18a9ebb..486f87d 100644
--- a/.github/workflows/lint-and-build-code.yml
+++ b/.github/workflows/lint-and-build-code.yml
@@ -35,7 +35,7 @@ jobs:
             experimental: true
 
     container:
-      image: "index.docker.io/atc0005/go-ci:${{ matrix.container-image}}"
+      image: "ghcr.io/atc0005/go-ci:${{ matrix.container-image}}"
 
     steps:
       - name: Check out code
@@ -66,7 +66,7 @@ jobs:
         container-image: ["go-ci-oldstable", "go-ci-stable", "go-ci-unstable"]
 
     container:
-      image: "index.docker.io/atc0005/go-ci:${{ matrix.container-image}}"
+      image: "ghcr.io/atc0005/go-ci:${{ matrix.container-image}}"
 
     steps:
       - name: Check out code
@@ -85,7 +85,7 @@ jobs:
         container-image: ["go-ci-oldstable", "go-ci-stable", "go-ci-unstable"]
 
     container:
-      image: "index.docker.io/atc0005/go-ci:${{ matrix.container-image}}"
+      image: "ghcr.io/atc0005/go-ci:${{ matrix.container-image}}"
 
     steps:
       - name: Print go version
diff --git a/.github/workflows/lint-and-build-using-make.yml b/.github/workflows/lint-and-build-using-make.yml
index 076683c..65434c1 100644
--- a/.github/workflows/lint-and-build-using-make.yml
+++ b/.github/workflows/lint-and-build-using-make.yml
@@ -22,7 +22,8 @@ jobs:
     # Default: 360 minutes
     timeout-minutes: 10
     container:
-      image: "index.docker.io/golang:latest"
+      # Use (lightly touched) mirror of current "vanilla" upstream golang image
+      image: "ghcr.io/atc0005/go-ci:go-ci-stable-mirror-build"
 
     steps:
       - name: Print go version
@@ -58,7 +59,8 @@ jobs:
     # Default: 360 minutes
     timeout-minutes: 10
     container:
-      image: "index.docker.io/golang:latest"
+      # Use (lightly touched) mirror of current "vanilla" upstream golang image
+      image: "ghcr.io/atc0005/go-ci:go-ci-stable-mirror-build"
 
     steps:
       - name: Print go version
diff --git a/.github/workflows/lint-and-test-only.yml b/.github/workflows/lint-and-test-only.yml
index 69aa182..a0841a0 100644
--- a/.github/workflows/lint-and-test-only.yml
+++ b/.github/workflows/lint-and-test-only.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     container:
-      image: index.docker.io/atc0005/go-ci:go-ci-lint-only
+      image: ghcr.io/atc0005/go-ci:go-ci-lint-only
 
     steps:
       - name: Check out code
diff --git a/.github/workflows/lint-docker-files.yml b/.github/workflows/lint-docker-files.yml
index 3c3abcc..ca1b627 100644
--- a/.github/workflows/lint-docker-files.yml
+++ b/.github/workflows/lint-docker-files.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     container:
-      image: index.docker.io/hadolint/hadolint:latest-debian
+      image: ghcr.io/hadolint/hadolint:latest-debian
 
     steps:
       - name: Check out code