diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-alpha.yml
index b42ce700b6..552b395099 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-alpha.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-edge.yml
index 0989d87a42..1f0ae26ad3 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/containerd-releases-edge.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-alpha.yml
index 1891ba4b02..69319df256 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-alpha.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-edge.yml
index c18d0aa65a..61f5f886dc 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/docker-releases-edge.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-alpha.yml
index e5a23c0058..2ad919ac5a 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-alpha.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-edge.yml
index 7b472aaa2e..03fa5973ea 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/go-releases-edge.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-alpha.yml
index e70e3afa5b..75c7a3a9d6 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-alpha.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-beta.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-beta.yml
index 4d906f210e..8772d4cd10 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-beta.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-beta.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_BETA::flatcar-master-beta
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Beta
         id: apply-patch-beta
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-edge.yml
index 4ba3768415..1f756df34c 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-edge.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-stable.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-stable.yml
index 91b7315960..b6c930f31a 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-stable.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/kernel-releases-stable.yml
@@ -22,8 +22,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_STABLE::flatcar-master
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Stable
         id: apply-patch-stable
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-alpha.yml
index 86781b6a9a..ee133cd0ee 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-alpha.yml
@@ -23,8 +23,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-edge.yml
index 505e264078..9a069482dc 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/runc-releases-edge.yml
@@ -23,8 +23,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-alpha.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-alpha.yml
index d6230313c4..86f223056b 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-alpha.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-alpha.yml
@@ -20,8 +20,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_ALPHA::flatcar-master-alpha
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Alpha
         id: apply-patch-alpha
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-edge.yml b/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-edge.yml
index de88054295..fc79842549 100644
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-edge.yml
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/rust-release-edge.yml
@@ -20,8 +20,6 @@ jobs:
           echo ::set-output name=BASE_BRANCH_EDGE::flatcar-master-edge
       - name: Set up Flatcar SDK
         id: setup-flatcar-sdk
-        env:
-          CORK_VERSION: 0.13.2
         run: .github/workflows/setup-flatcar-sdk.sh
       - name: Apply patch for Edge
         id: apply-patch-edge
diff --git a/sdk_container/src/third_party/coreos-overlay/.github/workflows/setup-flatcar-sdk.sh b/sdk_container/src/third_party/coreos-overlay/.github/workflows/setup-flatcar-sdk.sh
index 6efb0c49a5..4536287bb6 100755
--- a/sdk_container/src/third_party/coreos-overlay/.github/workflows/setup-flatcar-sdk.sh
+++ b/sdk_container/src/third_party/coreos-overlay/.github/workflows/setup-flatcar-sdk.sh
@@ -2,6 +2,7 @@
 
 set -euo pipefail
 
+CORK_VERSION=$(curl -s https://api.github.com/repos/flatcar-linux/mantle/releases/latest | jq -r .tag_name | sed -e 's/^v//')
 curl -L -o cork https://github.com/flatcar-linux/mantle/releases/download/v"${CORK_VERSION}"/cork-"${CORK_VERSION}"-amd64
 curl -L -o cork.sig https://github.com/flatcar-linux/mantle/releases/download/v"${CORK_VERSION}"/cork-"${CORK_VERSION}"-amd64.sig
 gpg --keyserver keys.gnupg.net --receive-keys 84C8E771C0DF83DFBFCAAAF03ADA89DEC2507883