diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 9b821c75..5956f92b 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -26,14 +26,14 @@ jobs:
     steps:
       - name: GitHub App token
         id: github_app_token
-        uses: tibdex/github-app-token@v2.1.0
+        uses: tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a # v2.1.0
         with:
           app_id: ${{ secrets.APP_ID }}
           private_key: ${{ secrets.APP_PRIVATE_KEY }}
           installation_id: 22958780
 
       - name: Backport
-        uses: VachaShah/backport@v2.2.0
+        uses: VachaShah/backport@142d3b8a8c70dc54db515e653e5ed3c3fac64100 # v2.2.0
         with:
           github_token: ${{ steps.github_app_token.outputs.token }}
           head_template: backport/backport-<%= number %>-to-<%= base %>
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c9b5d23..e0d1c952 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ on:
       - "*"
 jobs:
   Get-CI-Image-Tag:
-    uses: opensearch-project/opensearch-build/.github/workflows/get-ci-image-tag.yml@main
+    uses: opensearch-project/opensearch-build/.github/workflows/get-ci-image-tag.yml@c2498b758c08fb7bc48476509a5fc1b8dd5f7493 # main
     with:
       product: opensearch
 
@@ -32,11 +32,11 @@ jobs:
 
       # This step uses the checkout Github action: https://github.com/actions/checkout
       - name: Checkout Branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       # This step uses the setup-java Github action: https://github.com/actions/setup-java
       - name: Setup Java ${{ matrix.java }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           java-version: ${{ matrix.java }}
           distribution: 'temurin'
@@ -54,12 +54,12 @@ jobs:
           cp ./build/distributions/*.zip query-insights-artifacts
 
       - name: Upload Coverage Report
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@ab904c41d6ece82784817410c45d8b8c02684457 # v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Upload failed logs
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         if: failure()
         with:
           name: logs-ubuntu
@@ -67,7 +67,7 @@ jobs:
           overwrite: true
 
       - name: Upload Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: query-insights-plugin-ubuntu-latest
           path: query-insights-artifacts
@@ -94,7 +94,7 @@ jobs:
 
     steps:
       - name: Checkout Branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       # This is a hack, but this step creates a link to the X: mounted drive, which makes the path
       # short enough to work on Windows
@@ -103,7 +103,7 @@ jobs:
         run: subst 'X:' .
 
       - name: Setup Java ${{ matrix.java }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           java-version: ${{ matrix.java }}
           distribution: 'temurin'
@@ -120,7 +120,7 @@ jobs:
           cp ./build/distributions/*.zip query-insights-artifacts
 
       - name: Upload failed logs
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         if: ${{ failure() && matrix.os == 'macos-latest' }}
         with:
           name: logs-mac
@@ -128,7 +128,7 @@ jobs:
           overwrite: true
 
       - name: Upload failed logs
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         if: ${{ failure() && matrix.os == 'windows-latest' }}
         with:
           name: logs-windows
@@ -136,7 +136,7 @@ jobs:
           overwrite: true
 
       - name: Upload Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: query-insights-plugin-${{ matrix.os }}
           path: query-insights-artifacts
diff --git a/.github/workflows/code-hygiene.yml b/.github/workflows/code-hygiene.yml
index a1153e35..b8cdb372 100644
--- a/.github/workflows/code-hygiene.yml
+++ b/.github/workflows/code-hygiene.yml
@@ -7,14 +7,14 @@ jobs:
     runs-on: ubuntu-latest
     name: Spotless scan
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           distribution: temurin # Temurin is a distribution of adoptium
           java-version: 21
 
-      - uses: gradle/gradle-build-action@v3
+      - uses: gradle/gradle-build-action@ac2d340dc04d9e1113182899e983b5400c17cda1 # v3
         with:
           cache-disabled: true
           arguments: spotlessCheck
@@ -23,14 +23,14 @@ jobs:
     runs-on: ubuntu-latest
     name: Checkstyle scan
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           distribution: temurin # Temurin is a distribution of adoptium
           java-version: 21
 
-      - uses: gradle/gradle-build-action@v3
+      - uses: gradle/gradle-build-action@ac2d340dc04d9e1113182899e983b5400c17cda1 # v3
         with:
           cache-disabled: true
           arguments: checkstyleMain checkstyleTest
diff --git a/.github/workflows/delete_backport_branch.yml b/.github/workflows/delete_backport_branch.yml
index 5881df92..b8fac1c3 100644
--- a/.github/workflows/delete_backport_branch.yml
+++ b/.github/workflows/delete_backport_branch.yml
@@ -10,6 +10,6 @@ jobs:
     if: startsWith(github.event.pull_request.head.ref,'backport/')
     steps:
       - name: Delete merged branch
-        uses: SvanBoxel/delete-merged-branch@main
+        uses: SvanBoxel/delete-merged-branch@2b5b058e3db41a3328fd9a6a58fd4c2545a14353 # main
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/integ-tests-with-security.yml b/.github/workflows/integ-tests-with-security.yml
index ca662f91..aea8b7bd 100644
--- a/.github/workflows/integ-tests-with-security.yml
+++ b/.github/workflows/integ-tests-with-security.yml
@@ -11,7 +11,7 @@ on:
 
 jobs:
   Get-CI-Image-Tag:
-    uses: opensearch-project/opensearch-build/.github/workflows/get-ci-image-tag.yml@main
+    uses: opensearch-project/opensearch-build/.github/workflows/get-ci-image-tag.yml@c2498b758c08fb7bc48476509a5fc1b8dd5f7493 # main
     with:
       product: opensearch
 
@@ -31,10 +31,10 @@ jobs:
       - name: Run start commands
         run: ${{ needs.Get-CI-Image-Tag.outputs.ci-image-start-command }}
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@17f84c3641ba7b8f6deff6309fc4c864478f5d62 # v3
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -46,7 +46,7 @@ jobs:
 
       - name: Upload test reports
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         continue-on-error: true
         with:
           name: test-reports-${{ matrix.os }}-${{ matrix.java }}
@@ -65,10 +65,10 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
 
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@17f84c3641ba7b8f6deff6309fc4c864478f5d62 # v3
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -78,7 +78,7 @@ jobs:
 
       - name: Upload test reports
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         continue-on-error: true
         with:
           name: test-reports-${{ matrix.os }}-${{ matrix.java }}
diff --git a/.github/workflows/maven-publish.yml b/.github/workflows/maven-publish.yml
index f83da9a5..c8226161 100644
--- a/.github/workflows/maven-publish.yml
+++ b/.github/workflows/maven-publish.yml
@@ -17,15 +17,15 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
       - name: Set up JDK 21
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@17f84c3641ba7b8f6deff6309fc4c864478f5d62 # v3
         with:
           distribution: temurin # Temurin is a distribution of adoptium
           java-version: 21
 
       - name: Load secret
-        uses: 1password/load-secrets-action@v2
+        uses: 1password/load-secrets-action@581a835fb51b8e7ec56b71cf2ffddd7e68bb25e0 # v2
         with:
           # Export loaded secrets as environment variables
           export-env: true
@@ -35,7 +35,7 @@ jobs:
           MAVEN_SNAPSHOTS_S3_ROLE: op://opensearch-infra-secrets/maven-snapshots-s3/role
 
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v5
+        uses: aws-actions/configure-aws-credentials@61815dcd50bd041e203e49132bacad1fd04d2708 # v5
         with:
           role-to-assume: ${{ env.MAVEN_SNAPSHOTS_S3_ROLE }}
           aws-region: us-east-1
diff --git a/.github/workflows/remote_repository_exporter.yml b/.github/workflows/remote_repository_exporter.yml
index 5475cb4f..ff730056 100644
--- a/.github/workflows/remote_repository_exporter.yml
+++ b/.github/workflows/remote_repository_exporter.yml
@@ -25,10 +25,10 @@ jobs:
 
     steps:
       - name: Checkout query-insights
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Setup Java ${{ matrix.java }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4
         with:
           java-version: ${{ matrix.java }}
           distribution: 'temurin'