diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
new file mode 100644
index 0000000..48676ba
--- /dev/null
+++ b/.github/workflows/security.yml
@@ -0,0 +1,53 @@
+name: Security Scanning
+
+on:
+    pull_request:
+        branches: [main, dev]
+    push:
+        branches: [main, dev]
+    schedule:
+        - cron: "0 0 * * 0" # Weekly on Sundays at midnight UTC
+
+jobs:
+    dependency-scan:
+        name: Dependency Vulnerability Scan
+        permissions:
+            contents: read
+            security-events: write
+            actions: read
+        uses: google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.3.1
+        with:
+            scan-args: |-
+                --lockfile=requirements.txt:./uv.lock
+            fail-on-vuln: false # Don't fail the build, just report findings
+
+    code-scan:
+        name: Code Security Scan
+        runs-on: ubuntu-latest
+
+        permissions:
+            contents: read
+            security-events: write # For uploading SARIF results
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - name: Install uv
+              uses: astral-sh/setup-uv@v3
+
+            - name: Set up Python
+              run: uv python install 3.11
+
+            - name: Run Bandit security scan
+              run: |
+                  uv tool install bandit[sarif]
+                  uv tool run bandit -r src/ -f sarif -o bandit.sarif
+              continue-on-error: true # Don't fail the build, just report findings
+
+            - name: Upload Bandit results to GitHub Security
+              uses: github/codeql-action/upload-sarif@v3
+              if: always() # Upload even if scan found issues
+              with:
+                  sarif_file: bandit.sarif
+                  category: code-security
diff --git a/README.md b/README.md
index 463e372..987fae6 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ A modern Python client library for accessing Geological Survey of Sweden (SGU) g
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![codecov](https://codecov.io/gh/officialankan/sgu-client/branch/main/graph/badge.svg)](https://codecov.io/gh/officialankan/sgu-client)
 [![Code style: ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
+[![security: bandit](https://img.shields.io/badge/security-bandit-yellow.svg)](https://github.com/PyCQA/bandit)
+[![Security Scanning](https://github.com/officialankan/sgu-client/actions/workflows/security.yml/badge.svg)](https://github.com/officialankan/sgu-client/actions/workflows/security.yml)
 
 > This package is not affiliated with or endorsed by SGU.
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 7939608..a9ceb2d 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -16,7 +16,7 @@
 project = "sgu-client"
 copyright = f"{datetime.now().year}, Anders Retzner"
 author = "Anders Retzner"
-release = "0.4.2"
+release = "0.4.3"
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
diff --git a/pyproject.toml b/pyproject.toml
index 2e3809e..6c0141a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "sgu-client"
-version = "0.4.2"
+version = "0.4.3"
 description = "A modern Python client library for accessing Geological Survey of Sweden groundwater data APIs with type safety and pandas integration"
 readme = "README.md"
 authors = [{ name = "Anders Retzner", email = "anders.retzner@gmail.com" }]
diff --git a/src/sgu_client/__init__.py b/src/sgu_client/__init__.py
index dc55a27..b10c7f6 100644
--- a/src/sgu_client/__init__.py
+++ b/src/sgu_client/__init__.py
@@ -10,7 +10,7 @@
 )
 from .sgu_client import SGUClient
 
-__version__ = "0.4.2"
+__version__ = "0.4.3"
 __all__ = [
     "SGUAPIError",
     "SGUClient",
diff --git a/uv.lock b/uv.lock
index 08b754d..47f9cd9 100644
--- a/uv.lock
+++ b/uv.lock
@@ -715,7 +715,7 @@ wheels = [
 
 [[package]]
 name = "sgu-client"
-version = "0.4.2"
+version = "0.4.3"
 source = { editable = "." }
 dependencies = [
     { name = "pydantic" },