diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 03a3356f..8d847625 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: 3.15.11
+            plugin-diff-version: 3.15.12
             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: 3.15.11
+            plugin-diff-version: 3.15.12
             extra-helmfile-flags: '--enable-live-output'
           - helm-version: v3.21.4
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.11
+            plugin-diff-version: 3.15.12
             extra-helmfile-flags: ''
           - helm-version: v3.21.4
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.11
+            plugin-diff-version: 3.15.12
             extra-helmfile-flags: '--enable-live-output'
           # Helmfile now supports both Helm 3.x and Helm 4.x
           - helm-version: v4.2.4
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.11
+            plugin-diff-version: 3.15.12
             extra-helmfile-flags: ''
           - helm-version: v4.2.4
             kustomize-version: v5.8.0
             plugin-secrets-version: 4.7.4
-            plugin-diff-version: 3.15.11
+            plugin-diff-version: 3.15.12
             extra-helmfile-flags: '--enable-live-output'
     steps:
       - uses: actions/checkout@v7
diff --git a/Dockerfile b/Dockerfile
index 41a09892..35414bcb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -95,7 +95,7 @@ RUN set -x && \
     [ "$(age-keygen --version)" = "${AGE_VERSION}" ]
 
 ARG HELM_SECRETS_VERSION="4.7.4"
-RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.10 --verify=false && \
+RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.12 --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-getter-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-post-renderer-${HELM_SECRETS_VERSION}.tgz --verify=false && \
diff --git a/Dockerfile.debian-stable-slim b/Dockerfile.debian-stable-slim
index 62dae23a..388f9b5d 100644
--- a/Dockerfile.debian-stable-slim
+++ b/Dockerfile.debian-stable-slim
@@ -104,7 +104,7 @@ RUN set -x && \
     [ "$(age-keygen --version)" = "${AGE_VERSION}" ]
 
 ARG HELM_SECRETS_VERSION="4.7.4"
-RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.10 --verify=false && \
+RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.12 --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-getter-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-post-renderer-${HELM_SECRETS_VERSION}.tgz --verify=false && \
diff --git a/Dockerfile.ubuntu b/Dockerfile.ubuntu
index 606e9ab9..066f49ac 100644
--- a/Dockerfile.ubuntu
+++ b/Dockerfile.ubuntu
@@ -104,7 +104,7 @@ RUN set -x && \
     [ "$(age-keygen --version)" = "${AGE_VERSION}" ]
 
 ARG HELM_SECRETS_VERSION="4.7.4"
-RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.10 --verify=false && \
+RUN helm plugin install https://github.com/databus23/helm-diff --version v3.15.12 --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-getter-${HELM_SECRETS_VERSION}.tgz --verify=false && \
     helm plugin install https://github.com/jkroepke/helm-secrets/releases/download/v${HELM_SECRETS_VERSION}/secrets-post-renderer-${HELM_SECRETS_VERSION}.tgz --verify=false && \
diff --git a/pkg/app/init.go b/pkg/app/init.go
index b2b40941..dbb50a69 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     = "v3.15.11"
+	HelmDiffRecommendedVersion     = "v3.15.12"
 	HelmRecommendedVersion         = "v4.2.4" // 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"
diff --git a/test/integration/run.sh b/test/integration/run.sh
index 7d19edc9..a792dccf 100755
--- a/test/integration/run.sh
+++ b/test/integration/run.sh
@@ -27,7 +27,7 @@ export HELM_DATA_HOME="${helm_dir}/data"
 export HELM_HOME="${HELM_DATA_HOME}"
 export HELM_PLUGINS="${HELM_DATA_HOME}/plugins"
 export HELM_CONFIG_HOME="${helm_dir}/config"
-HELM_DIFF_VERSION="${HELM_DIFF_VERSION:-3.15.10}"
+HELM_DIFF_VERSION="${HELM_DIFF_VERSION:-3.15.12}"
 HELM_GIT_VERSION="${HELM_GIT_VERSION:-1.4.1}"
 HELM_SECRETS_VERSION="${HELM_SECRETS_VERSION:-4.7.4}"
 export GNUPGHOME="${PWD}/${dir}/.gnupg"