diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d7b1766..b168c7f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 9b79b5b..61f4619 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.3.0
+  rev: v4.4.0
   hooks:
   - id: check-yaml
   - id: check-toml
@@ -8,37 +8,30 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/Lucas-C/pre-commit-hooks-markup
-  rev: v1.0.0
+  rev: v1.0.1
   hooks:
   - id: rst-linter
     files: (README\.rst)|(CHANGELOG\.rst)
 
 - repo: https://github.com/PyCQA/isort
-  rev: 5.10.1
+  rev: 5.12.0
   hooks:
   - id: isort
     args: [toml]
 
-- repo: https://github.com/timothycrosley/isort
-  rev: 5.10.1
-  hooks:
-  - id: isort
-    additional_dependencies:
-      - toml
-
 - repo: https://github.com/psf/black
-  rev: 22.6.0
+  rev: 23.3.0
   hooks:
   - id: black
 
 - repo: https://github.com/asottile/blacken-docs
-  rev: v1.12.1
+  rev: 1.14.0
   hooks:
   - id: blacken-docs
-    additional_dependencies: [black==22.6.0]
+    additional_dependencies: [black==23.3.0]
     args: [-l, "79", -t, py37]
 
-- repo: https://gitlab.com/pycqa/flake8
-  rev: 5.0.2
+- repo: https://github.com/pycqa/flake8
+  rev: 6.0.0
   hooks:
   - id: flake8
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 492e9ca..af53e60 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,12 @@
 Change Log
 ##########
 
+1.0.6 (2023-07-04)
+==================
+
+- Pin ``pydantic<2.0.0``.
+- Drop support for Python 3.7.
+
 1.0.1 (2021-05-11)
 ==================
 
diff --git a/setup.cfg b/setup.cfg
index e87e4da..85696f8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,9 +15,10 @@ classifiers =
     License :: OSI Approved :: MIT License
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Intended Audience :: Developers
     Natural Language :: English
     Operating System :: POSIX
@@ -30,7 +31,7 @@ include_package_data = True
 package_dir =
     = src
 packages = find:
-python_requires = >=3.6
+python_requires = >=3.8
 setup_requires =
     setuptools_scm
 install_requires =
@@ -41,7 +42,7 @@ install_requires =
     structlog
     ltd-conveyor
     requests
-    pydantic
+    pydantic<2.0.0
     click
     pypandoc
     panflute
diff --git a/src/lander/config.py b/src/lander/config.py
index 7e5db59..cf30f52 100644
--- a/src/lander/config.py
+++ b/src/lander/config.py
@@ -172,7 +172,6 @@ class EncodedString(BaseModel):
 
 
 class GitRefType(str, Enum):
-
     tag = "tag"
     branch = "branch"