diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 59f4d55..64d10a1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,14 +11,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.11', '3.12']
+        python-version: ['3.12']
         django-version: ['4.2', '5.0', 'dev']
 
-        exclude:
-          - python-version: '3.12'
-            django-version: '4.2'
-          - python-version: '3.11'
-            django-version: 'dev'
     services:
       mysql:
         image: mysql:latest
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a32918b..c3fd69a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -3,20 +3,20 @@ exclude: tests/etc/user-*
 
 repos:
   - repo: https://github.com/PyCQA/bandit
-    rev: 1.7.7
+    rev: 1.7.9
     hooks:
       - id: bandit
         args:
           - "-x *test*.py"
 
   - repo: https://github.com/psf/black
-    rev: 24.2.0
+    rev: 24.8.0
     hooks:
       - id: black
-        language_version: python3.11
+        language_version: python3.12
 
   - repo: https://github.com/pycqa/flake8
-    rev: 7.0.0
+    rev: 7.1.1
     hooks:
       - id: flake8
         args:
@@ -28,7 +28,7 @@ repos:
       - id: isort
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
+    rev: v4.6.0
     hooks:
       - id: requirements-txt-fixer
         files: requirements/.*\.txt$
@@ -42,7 +42,7 @@ repos:
       - id: detect-private-key
 
   - repo: https://github.com/adrienverge/yamllint
-    rev: v1.34.0
+    rev: v1.35.1
     hooks:
       - id: yamllint
         args:
diff --git a/edc_adverse_event/templatetags/edc_adverse_event_extras.py b/edc_adverse_event/templatetags/edc_adverse_event_extras.py
index e8b66cf..5c212fe 100644
--- a/edc_adverse_event/templatetags/edc_adverse_event_extras.py
+++ b/edc_adverse_event/templatetags/edc_adverse_event_extras.py
@@ -47,12 +47,16 @@ class DeathReportModel(DeathReportModelMixin, BaseUuidModel): ...
 register = template.Library()
 
 
-def wrapx(text, length):
+def wrapx(text: str, length: int) -> str:
     if length:
         return "<BR>".join(wrap(text, length))
     return text
 
 
+def escape_braces(text: str) -> str:
+    return text.replace("{", "{{").replace("}", "}}")
+
+
 def select_ae_template(relative_path):
     """Returns a template object."""
     local_path = f"{get_adverse_event_app_label()}/bootstrap{get_bootstrap_version()}/"
@@ -78,10 +82,14 @@ def format_ae_description(context, ae_initial, wrap_length):
     context["YES"] = YES
     context["ae_initial"] = ae_initial
     try:
-        context["sae_reason"] = format_html(wrapx(ae_initial.sae_reason.name, wrap_length))
+        context["sae_reason"] = format_html(
+            wrapx(escape_braces(ae_initial.sae_reason.name), wrap_length)
+        )
     except AttributeError:
         context["sae_reason"] = ""
-    context["ae_description"] = format_html(wrapx(ae_initial.ae_description, wrap_length))
+    context["ae_description"] = format_html(
+        wrapx(escape_braces(ae_initial.ae_description), wrap_length)
+    )
     return context
 
 
@@ -96,13 +104,15 @@ def format_ae_followup_description(context, ae_followup, wrap_length):
     context["ae_initial"] = ae_followup.ae_initial
     try:
         context["sae_reason"] = format_html(
-            wrapx(ae_followup.ae_initial.sae_reason.name, wrap_length)
+            wrapx(escape_braces(ae_followup.ae_initial.sae_reason.name), wrap_length)
         )
     except AttributeError:
         context["sae_reason"] = ""
-    context["relevant_history"] = format_html(wrapx(ae_followup.relevant_history, wrap_length))
+    context["relevant_history"] = format_html(
+        wrapx(escape_braces(ae_followup.relevant_history), wrap_length)
+    )
     context["ae_description"] = format_html(
-        wrapx(ae_followup.ae_initial.ae_description, wrap_length)
+        wrapx(escape_braces(ae_followup.ae_initial.ae_description), wrap_length)
     )
     return context
 
@@ -116,10 +126,12 @@ def format_ae_susar_description(context, ae_susar, wrap_length):
     context["ae_susar"] = ae_susar
     context["ae_initial"] = ae_susar.ae_initial
     context["sae_reason"] = format_html(
-        "<BR>".join(wrap(ae_susar.ae_initial.sae_reason.name, wrap_length or 35))
+        "<BR>".join(
+            wrap(escape_braces(ae_susar.ae_initial.sae_reason.name), wrap_length or 35)
+        )
     )
     context["ae_description"] = format_html(
-        wrapx(ae_susar.ae_initial.ae_description, wrap_length)
+        wrapx(escape_braces(ae_susar.ae_initial.ae_description), wrap_length)
     )
     return context
 
diff --git a/pyproject.toml b/pyproject.toml
index 2b42cad..de1702a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,12 +6,12 @@ version_file="_version.py"
 
 [tool.black]
 line-length = 95
-target-version = ["py311"]
+target-version = ["py312"]
 extend-exclude = '''^(.*\/)*\b(migrations)\b($|\/.*$)'''
 
 [tool.isort]
 profile = "black"
-py_version = "311"
+py_version = "312"
 skip = [".tox", ".eggs", "migrations"]
 
 [tool.coverage.run]
@@ -35,15 +35,13 @@ exclude_lines = [
 legacy_tox_ini = """
 [tox]
 envlist =
-    py{311}-dj{42,50},
-    py{312}-dj{50,dev},
+    py{312}-dj{42,50,dev},
     lint
 
 isolated_build = true
 
 [gh-actions]
 python =
-    3.11: py311
     3.12: py312, lint
 
 [gh-actions:env]
diff --git a/setup.cfg b/setup.cfg
index 7bd1588..3dad30b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,12 +16,12 @@ classifiers=
     Intended Audience :: Developers
     Intended Audience :: Science/Research
     Operating System :: OS Independent
-    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
     License :: OSI Approved :: GNU General Public License v3 (GPLv3)
 
 
 [options]
-python_requires = >=3.11
+python_requires = >=3.12
 zip_safe = False
 include_package_data = True
 packages = find: