diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e0ca73ab..7a491fc1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -96,35 +96,35 @@ jobs:
           - helm-version: v3.18.6
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: ''
           # In case you need to test some optional helmfile features,
           # enable it via extra-helmfile-flags below.
           - helm-version: v3.18.6
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: '--enable-live-output'
           - helm-version: v3.21.3
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: ''
           - helm-version: v3.21.3
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: '--enable-live-output'
           # Helmfile now supports both Helm 3.x and Helm 4.x
           - helm-version: v4.2.3
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: ''
           - helm-version: v4.2.3
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.10
+            plugin-diff-version: 3.15.11
             extra-helmfile-flags: '--enable-live-output'
     steps:
       - uses: actions/checkout@v7
diff --git a/pkg/app/init.go b/pkg/app/init.go
index 7b68b135..ec068183 100644
--- a/pkg/app/init.go
+++ b/pkg/app/init.go
@@ -19,7 +19,7 @@ import (
 
 const (
 	HelmRequiredVersion            = "v3.18.6" // Minimum required version (supports Helm 3.x and 4.x)
-	HelmDiffRecommendedVersion     = "v3.15.10"
+	HelmDiffRecommendedVersion     = "v3.15.11"
 	HelmRecommendedVersion         = "v4.2.3" // Recommended Helm 4 version
 	HelmSecretsRecommendedVersion  = "v4.7.4" // v4.7.0+ works with both Helm 3 (single plugin) and Helm 4 (split plugin architecture)
 	HelmGitRecommendedVersion      = "v1.3.0"