diff --git a/.github/workflows/add-remove-new-fulcio.yaml b/.github/workflows/add-remove-new-fulcio.yaml
index 0bea40f10..a42a4f285 100644
--- a/.github/workflows/add-remove-new-fulcio.yaml
+++ b/.github/workflows/add-remove-new-fulcio.yaml
@@ -71,6 +71,8 @@ jobs:
           ${{ runner.os }}-go-${{ matrix.go-version }}-
 
     - uses: ko-build/setup-ko@ace48d793556083a76f1e3e6068850c1f4a369aa # v0.6
+      with:
+        version: tip
 
     - uses: sigstore/cosign-installer@11086d25041f77fe8fe7b9ea4e48e3b9192b8f19 # v3.1.2
 
diff --git a/.github/workflows/fulcio-rekor-kind.yaml b/.github/workflows/fulcio-rekor-kind.yaml
index 50bb706ce..7076969cd 100644
--- a/.github/workflows/fulcio-rekor-kind.yaml
+++ b/.github/workflows/fulcio-rekor-kind.yaml
@@ -74,6 +74,8 @@ jobs:
           ${{ runner.os }}-go-${{ matrix.go-version }}-
 
     - uses: ko-build/setup-ko@ace48d793556083a76f1e3e6068850c1f4a369aa # v0.6
+      with:
+        version: tip
 
     - uses: sigstore/cosign-installer@11086d25041f77fe8fe7b9ea4e48e3b9192b8f19 # v3.1.2
 
diff --git a/.github/workflows/test-action-tuf.yaml b/.github/workflows/test-action-tuf.yaml
index 4ea634b46..1e8938b5e 100644
--- a/.github/workflows/test-action-tuf.yaml
+++ b/.github/workflows/test-action-tuf.yaml
@@ -58,6 +58,8 @@ jobs:
         check-latest: true
 
     - uses: ko-build/setup-ko@ace48d793556083a76f1e3e6068850c1f4a369aa # v0.6
+      with:
+        version: tip
 
     - name: Create sample image
       run: |
diff --git a/.github/workflows/test-release.yaml b/.github/workflows/test-release.yaml
index 889fbdd12..3ebe27500 100644
--- a/.github/workflows/test-release.yaml
+++ b/.github/workflows/test-release.yaml
@@ -51,6 +51,8 @@ jobs:
         check-latest: true
 
     - uses: ko-build/setup-ko@ace48d793556083a76f1e3e6068850c1f4a369aa # v0.6
+      with:
+        version: tip
 
     - name: Setup Cluster
       # TODO: update after next release.