diff --git a/static-analysis/semgrep/README.md b/static-analysis/semgrep/README.md
index dc4472d..7050bc5 100644
--- a/static-analysis/semgrep/README.md
+++ b/static-analysis/semgrep/README.md
@@ -20,7 +20,7 @@ Github Action that scans code changes being made and posts security findings in
     # Default: true
 
     semgrep-app-token:
-    # SemGrep API token to be added to repo that allows to pull latest rule config from ruleboard in Semgrep UI
+    # SemGrep API token to pull the latest rule configuration from Semgrep's ruleboard
     #
     # Required: true
     # Default: ""
diff --git a/static-analysis/semgrep/action.yaml b/static-analysis/semgrep/action.yaml
index 0e5965e..4b77836 100644
--- a/static-analysis/semgrep/action.yaml
+++ b/static-analysis/semgrep/action.yaml
@@ -7,21 +7,37 @@ inputs:
     default: "true"
   semgrep-app-token:
     required: true
-    description: SemGrep API token to be added to repo that allows to pull latest rule config from ruleboard in Semgrep UI
+    description: SemGrep API token to pull the latest rule configuration from Semgrep's ruleboard
+
 runs:
   using: composite
   steps:
     - name: Checkout
-      if: ${{inputs.checkout-repo == 'true'}}
+      if: ${{ inputs.checkout-repo == 'true' }}
       uses: actions/checkout@v4
-    - run: echo "pausing checks"
+      with:
+        fetch-depth: 2
+
+    - name: Fetch Baseline Branch
+      run: |
+        set -e  # Fail on any errors
+        BASE_BRANCH=$(jq -r '.pull_request.base.ref // "main"' < "${GITHUB_EVENT_PATH}")
+        echo "Fetching base branch: $BASE_BRANCH"
+        git fetch origin $BASE_BRANCH:$BASE_BRANCH
+        echo "Base branch $BASE_BRANCH fetched successfully."
+      shell: bash
+
+    - name: Run Semgrep
+      run: |
+        BASE_BRANCH=$(jq -r '.pull_request.base.ref // "main"' < "${GITHUB_EVENT_PATH}")
+        echo "Running Semgrep with baseline branch: $BASE_BRANCH"
+        docker run --rm -v "${PWD}:/src" \
+        -e SEMGREP_APP_TOKEN=${{ inputs.semgrep-app-token }} \
+        -e SEMGREP_REPO_NAME=${GITHUB_REPOSITORY} \
+        -e SEMGREP_BRANCH=${GITHUB_REF} \
+        -e SEMGREP_COMMIT=${{ github.event.pull_request.head.sha }} \
+        -e SEMGREP_PR_ID=${{ github.event.pull_request.number }} \
+        -e SEMGREP_BASELINE_REF=refs/heads/$BASE_BRANCH \
+        semgrep/semgrep:latest-nonroot \
+        semgrep ci
       shell: bash
-#        docker run --rm -v  "${PWD}:/src" \
-#        -e SEMGREP_APP_TOKEN=${{ inputs.semgrep-app-token }} \
-#        -e SEMGREP_REPO_NAME=${GITHUB_REPOSITORY} \
-#        -e SEMGREP_BRANCH=${GITHUB_REF} \
-#        -e SEMGREP_COMMIT=${{ github.event.pull_request.head.sha }} \
-#        -e SEMGREP_PR_ID=${{github.event.pull_request.number}} \
-#        returntocorp/semgrep:latest-nonroot \
-#        semgrep ci
-#      shell: bash