diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 0db05296c..1f1ad0dbc 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -8,7 +8,7 @@ on:
 
 env:
   AZURE_FUNCTIONAPP_PACKAGE_PATH: './app/workers'
-  PYTHON_VERSION: '3.8'
+  PYTHON_VERSION: '3.11'
 
 jobs:
   build-and-publish-workers:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 023234ac2..b54e4c73c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.11']
+        python-version: ['3.11']
 
     steps:
       - uses: actions/checkout@v3
diff --git a/app/workers/poetry.lock b/app/workers/poetry.lock
index 3ba0532cd..1252c7a32 100644
--- a/app/workers/poetry.lock
+++ b/app/workers/poetry.lock
@@ -12,10 +12,8 @@ files = [
 ]
 
 [package.dependencies]
-exceptiongroup = {version = ">=1.0.2", markers = "python_version < \"3.11\""}
 idna = ">=2.8"
 sniffio = ">=1.1"
-typing-extensions = {version = ">=4.1", markers = "python_version < \"3.11\""}
 
 [package.extras]
 doc = ["Sphinx (>=7)", "packaging", "sphinx-autodoc-typehints (>=1.2.0)", "sphinx-rtd-theme"]
@@ -347,9 +345,6 @@ files = [
     {file = "coverage-7.4.3.tar.gz", hash = "sha256:276f6077a5c61447a48d133ed13e759c09e62aff0dc84274a68dc18660104d52"},
 ]
 
-[package.dependencies]
-tomli = {version = "*", optional = true, markers = "python_full_version <= \"3.11.0a6\" and extra == \"toml\""}
-
 [package.extras]
 toml = ["tomli"]
 
@@ -418,20 +413,6 @@ files = [
     {file = "et_xmlfile-1.1.0.tar.gz", hash = "sha256:8eb9e2bc2f8c97e37a2dc85a09ecdcdec9d8a396530a6d5a33b30b9a92da0c5c"},
 ]
 
-[[package]]
-name = "exceptiongroup"
-version = "1.2.0"
-description = "Backport of PEP 654 (exception groups)"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "exceptiongroup-1.2.0-py3-none-any.whl", hash = "sha256:4bfd3996ac73b41e9b9628b04e079f193850720ea5945fc96a08633c66912f14"},
-    {file = "exceptiongroup-1.2.0.tar.gz", hash = "sha256:91f5c769735f051a4290d52edd0858999b57e5876e9f85937691bd4c9fa3ed68"},
-]
-
-[package.extras]
-test = ["pytest (>=6)"]
-
 [[package]]
 name = "h11"
 version = "0.14.0"
@@ -499,35 +480,6 @@ files = [
     {file = "idna-3.6.tar.gz", hash = "sha256:9ecdbbd083b06798ae1e86adcbfe8ab1479cf864e4ee30fe4e46a003d12491ca"},
 ]
 
-[[package]]
-name = "importlib-resources"
-version = "6.1.2"
-description = "Read resources from Python packages"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "importlib_resources-6.1.2-py3-none-any.whl", hash = "sha256:9a0a862501dc38b68adebc82970140c9e4209fc99601782925178f8386339938"},
-    {file = "importlib_resources-6.1.2.tar.gz", hash = "sha256:308abf8474e2dba5f867d279237cd4076482c3de7104a40b41426370e891549b"},
-]
-
-[package.dependencies]
-zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
-
-[package.extras]
-docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
-testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy", "pytest-ruff (>=0.2.1)", "zipp (>=3.17)"]
-
-[[package]]
-name = "iniconfig"
-version = "2.0.0"
-description = "brain-dead simple config-ini parsing"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
-    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
-]
-
 [[package]]
 name = "iniconfig"
 version = "2.0.0"
@@ -580,9 +532,7 @@ files = [
 
 [package.dependencies]
 attrs = ">=22.2.0"
-importlib-resources = {version = ">=1.4.0", markers = "python_version < \"3.9\""}
 jsonschema-specifications = ">=2023.03.6"
-pkgutil-resolve-name = {version = ">=1.3.10", markers = "python_version < \"3.9\""}
 referencing = ">=0.28.4"
 rpds-py = ">=0.7.1"
 
@@ -602,7 +552,6 @@ files = [
 ]
 
 [package.dependencies]
-importlib-resources = {version = ">=1.4.0", markers = "python_version < \"3.9\""}
 referencing = ">=0.31.0"
 
 [[package]]
@@ -692,17 +641,6 @@ files = [
     {file = "packaging-23.2.tar.gz", hash = "sha256:048fb0e9405036518eaaf48a55953c750c11e1a1b68e0dd1a9d62ed0c092cfc5"},
 ]
 
-[[package]]
-name = "pkgutil-resolve-name"
-version = "1.3.10"
-description = "Resolve a name to an object."
-optional = false
-python-versions = ">=3.6"
-files = [
-    {file = "pkgutil_resolve_name-1.3.10-py3-none-any.whl", hash = "sha256:ca27cc078d25c5ad71a9de0a7a330146c4e014c2462d9af19c6b828280649c5e"},
-    {file = "pkgutil_resolve_name-1.3.10.tar.gz", hash = "sha256:357d6c9e6a755653cfd78893817c0853af365dd51ec97f3d358a819373bbd174"},
-]
-
 [[package]]
 name = "pluggy"
 version = "1.4.0"
@@ -770,11 +708,9 @@ files = [
 
 [package.dependencies]
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
-exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=1.3.0,<2.0"
-tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
 
 [package.extras]
 testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
@@ -1061,17 +997,6 @@ files = [
     {file = "sniffio-1.3.0.tar.gz", hash = "sha256:e60305c5e5d314f5389259b7f22aaa33d8f7dee49763119234af3755c55b9101"},
 ]
 
-[[package]]
-name = "tomli"
-version = "2.0.1"
-description = "A lil' TOML parser"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
-    {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
-]
-
 [[package]]
 name = "typing-extensions"
 version = "4.9.0"
@@ -1100,22 +1025,7 @@ h2 = ["h2 (>=4,<5)"]
 socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
 zstd = ["zstandard (>=0.18.0)"]
 
-[[package]]
-name = "zipp"
-version = "3.17.0"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-optional = false
-python-versions = ">=3.8"
-files = [
-    {file = "zipp-3.17.0-py3-none-any.whl", hash = "sha256:0e923e726174922dce09c53c59ad483ff7bbb8e572e00c7f7c46b88556409f31"},
-    {file = "zipp-3.17.0.tar.gz", hash = "sha256:84e64a1c28cf7e91ed2078bb8cc8c259cb19b76942096c8d7b84947690cabaf0"},
-]
-
-[package.extras]
-docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
-testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-ignore-flaky", "pytest-mypy (>=0.9.1)", "pytest-ruff"]
-
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.8"
-content-hash = "53dd5480be518ca031a2523481f1c7effacd6c62e3e99947c6d280052a408926"
+python-versions = "^3.11"
+content-hash = "f4c0e4c28eb053c0e0d782db4ec493806546b5e526413c07249df1a5ce95bec9"
diff --git a/app/workers/pyproject.toml b/app/workers/pyproject.toml
index 097d5d633..ad050b706 100644
--- a/app/workers/pyproject.toml
+++ b/app/workers/pyproject.toml
@@ -6,7 +6,7 @@ authors = ["Sam Cox <sam.cox@nottingham.ac.uk>", "Philip Quinlan <philip.quinlan
 license = "MIT"
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.11"
 azure-common = "^1.1.28"
 azure-functions = "^1.18.0"
 azure-storage-blob = "12.8.1"
diff --git a/changelog.md b/changelog.md
index f4d83879e..477559483 100644
--- a/changelog.md
+++ b/changelog.md
@@ -11,6 +11,7 @@ Please append a line to the changelog for each change made.
 - Restructure repo to separate dependencies.
 - Extract Azure function ProcessQueue, into UploadQueue and CreateConcepts. Moving the upload to be standalone, and creating concepts and reusing them to when the user sets the Person ID and Date Event per table.
 - Updated the CSV export function - reordered the columns and added new columns (class, concept, validity and vocabulary).
+- Update the Azure functions to use Python 3.11
 ### Bugfixes
 - Bug fixed in `find_existing_scan_report_concepts()` which was causing some `SRConcepts` to be processed multiple times. This didn't cause any issues, but was misleading and wasteful.
 - Fixed hardcoded `content_type` id used in the backend, client, and workers.