diff --git a/.github/keys/mosipgpgkey_pub.gpg b/.github/keys/mosipgpgkey_pub.gpg
deleted file mode 100644
index 4bdb1a947be..00000000000
Binary files a/.github/keys/mosipgpgkey_pub.gpg and /dev/null differ
diff --git a/.github/keys/mosipgpgkey_sec.gpg b/.github/keys/mosipgpgkey_sec.gpg
deleted file mode 100644
index 97de55678f8..00000000000
Binary files a/.github/keys/mosipgpgkey_sec.gpg and /dev/null differ
diff --git a/.github/workflows/push-trigger.yml b/.github/workflows/push-trigger.yml
index 4c0d5b49fc8..c5755ce575a 100644
--- a/.github/workflows/push-trigger.yml
+++ b/.github/workflows/push-trigger.yml
@@ -20,10 +20,11 @@ on:
       - 1.*
       - develop*
       - MOSIP*
+      - gpg-migration
 
 jobs:
   build-maven-kernel:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: kernel
       BUILD_ARTIFACT: kernel
@@ -32,11 +33,12 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   publish_to_nexus_kernel:
     if: "${{ !contains(github.ref, 'master') && github.event_name != 'pull_request' && github.event_name != 'release' && github.event_name != 'prerelease' && github.event_name != 'publish' }}"
     needs: build-maven-kernel
-    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: kernel
     secrets:
@@ -45,6 +47,7 @@ jobs:
       OSSRH_URL: ${{ secrets.OSSRH_CENTRAL_URL }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   sonar_analysis_kernel:
     needs: build-maven-kernel
@@ -62,7 +65,7 @@ jobs:
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   build-maven-pre-registration-booking-service:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: pre-registration-booking-service
       BUILD_ARTIFACT: pre-registration-booking-service
@@ -71,6 +74,7 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   build-dockers-pre-registration-booking-service:
     needs: build-maven-pre-registration-booking-service
@@ -96,7 +100,7 @@ jobs:
   publish_to_nexus_pre-registration-booking-service:
     if: "${{ !contains(github.ref, 'master') && github.event_name != 'pull_request' }}"
     needs: build-maven-pre-registration-booking-service
-    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: pre-registration-booking-service
     secrets:
@@ -105,6 +109,7 @@ jobs:
       OSSRH_URL: ${{ secrets.OSSRH_CENTRAL_URL }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   sonar_analysis:
     needs: build-maven-pre-registration-booking-service
@@ -123,7 +128,7 @@ jobs:
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
 
   build-maven-registration-processor-external-stage:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: registration-processor/registration-processor-external-stage
       BUILD_ARTIFACT: registration-processor-external-stage
@@ -132,6 +137,7 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
 
   build-dockers-registration-processor-external-stage:
@@ -155,7 +161,7 @@ jobs:
       RELEASE_DOCKER_HUB: ${{ secrets.RELEASE_DOCKER_HUB }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   build-maven-registration-processor-external-integration-service:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: registration-processor/registration-processor-external-integration-service
       BUILD_ARTIFACT: registration-processor-external-integration-service
@@ -164,6 +170,7 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
 
   build-dockers-registration-processor-external-integration-service:
@@ -187,7 +194,7 @@ jobs:
       RELEASE_DOCKER_HUB: ${{ secrets.RELEASE_DOCKER_HUB }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   build-maven-cache-provider-hazelcast:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: cache-provider-hazelcast
       BUILD_ARTIFACT: cache-provider-hazelcast
@@ -196,11 +203,12 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   publish_to_nexus_cache-provider-hazelcast:
     if: "${{ !contains(github.ref, 'master') && github.event_name != 'pull_request' }}"
     needs: build-maven-cache-provider-hazelcast
-    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: cache-provider-hazelcast
     secrets:
@@ -209,10 +217,11 @@ jobs:
       OSSRH_URL: ${{ secrets.OSSRH_CENTRAL_URL }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
 
   build-maven-cache-provider-redis:
-    uses: mosip/kattu/.github/workflows/maven-build.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-build.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: cache-provider-redis
       BUILD_ARTIFACT: cache-provider-redis
@@ -221,12 +230,13 @@ jobs:
       OSSRH_SECRET: ${{ secrets.OSSRH_SECRET }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
 
   publish_to_nexus_cache-provider-redis:
     if: "${{ !contains(github.ref, 'master') && github.event_name != 'pull_request' }}"
     needs: build-maven-cache-provider-redis
-    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@master-java21
+    uses: mosip/kattu/.github/workflows/maven-publish-to-nexus.yml@gpgupdate-masterj21
     with:
       SERVICE_LOCATION: cache-provider-redis
     secrets:
@@ -235,4 +245,5 @@ jobs:
       OSSRH_URL: ${{ secrets.OSSRH_CENTRAL_URL }}
       OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
       GPG_SECRET: ${{ secrets.GPG_SECRET }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
       SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
\ No newline at end of file