diff --git a/.github/workflows/charts-lint.yaml b/.github/workflows/charts-lint.yaml
index f44f474fe5e..90090ac55a6 100644
--- a/.github/workflows/charts-lint.yaml
+++ b/.github/workflows/charts-lint.yaml
@@ -55,7 +55,7 @@ jobs:
         if: inputs.chartChangesDetected == 'true'
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - name: Install ./clustertool
         shell: bash
diff --git a/.github/workflows/charts-release.yaml b/.github/workflows/charts-release.yaml
index 0b237f3c50e..f19a4a7f6d3 100644
--- a/.github/workflows/charts-release.yaml
+++ b/.github/workflows/charts-release.yaml
@@ -134,7 +134,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.17.2
+          version: v3.18.6
 
       # Optional step if GPG signing is used
       - name: Prepare GPG key
diff --git a/.github/workflows/charts-test.yaml b/.github/workflows/charts-test.yaml
index f0c014cbabb..4fe49ac2b06 100644
--- a/.github/workflows/charts-test.yaml
+++ b/.github/workflows/charts-test.yaml
@@ -149,7 +149,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
@@ -221,7 +221,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
@@ -293,7 +293,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
@@ -365,7 +365,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
@@ -437,7 +437,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
@@ -510,7 +510,7 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
         with:
-          version: v3.14.0
+          version: v3.18.6
 
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
diff --git a/.github/workflows/common-tests.yaml b/.github/workflows/common-tests.yaml
index 5df68b523e5..f75f789c1ea 100644
--- a/.github/workflows/common-tests.yaml
+++ b/.github/workflows/common-tests.yaml
@@ -48,7 +48,7 @@ jobs:
       matrix:
         helm-version:
           - v3.14.0
-          - v3.17.2
+          - v3.18.6
     steps:
       - name: Checkout
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
@@ -87,7 +87,7 @@ jobs:
       matrix:
         helm-version:
           - v3.14.0
-          - v3.17.2
+          - v3.18.6
     steps:
       - name: Checkout
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
@@ -135,7 +135,7 @@ jobs:
         # We test the latest k3s version and the lowest supported by either the oldest supported SCALE or FluxCD release
         helm-version:
           - v3.14.0
-          - v3.17.2
+          - v3.18.6
         values:
           - basic-values.yaml
           - configmap-values.yaml