diff --git a/.circleci/config.yml b/.circleci/config.yml
index 682c8b0ddb..fc1195268f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -20,15 +20,15 @@ jobs:
   # Documentation CI
   docs-build:
     docker:
-      - image: cimg/python:3.12
+      - image: cimg/python:3.13
     steps:
       - checkout
       # Download and cache dependencies
       - restore_cache:
           keys:
-            - v2-dependencies-python3.12-{{ checksum "./docs/requirements.txt" }}
+            - v2-dependencies-python3.13-{{ checksum "requirements-dev.txt" }}
             # fallback to using the latest cache if no exact match is found
-            - v2-dependencies-python3.12-
+            - v2-dependencies-python3.13-
       - run:
           name: Install dependencies
           # Note that we the circleci node image installs stuff with a user "circleci", rather
@@ -37,11 +37,12 @@ jobs:
             pip install uv
             uv venv
             source .venv/bin/activate
-            uv pip install -r ./docs/requirements.txt
+            uv pip install -r requirements.txt
+            uv pip install -r requirements-dev.txt
       - save_cache:
           paths:
             - ./venv
-          key: v2-dependencies-python3.12-{{ checksum "./docs/requirements.txt" }}
+          key: v2-dependencies-python3.13-{{ checksum "requirements-dev.txt" }}
       - run:
           name: Build docs
           command: |
@@ -52,15 +53,15 @@ jobs:
 
   docs-build-deploy:
     docker:
-      - image: cimg/python:3.12-node
+      - image: cimg/python:3.13-node
     steps:
       - checkout
       # Download and cache dependencies
       - restore_cache:
           keys:
-            - v2-dependencies-python3.12-{{ checksum "./docs/requirements.txt" }}
+            - v2-dependencies-python3.13-{{ checksum "requirements-dev.txt" }}-
             # fallback to using the latest cache if no exact match is found
-            - v2-dependencies-python3.12-
+            - v2-dependencies-python3.13-
       - run:
           name: Install dependencies
           # Note that we the circleci node image installs stuff with a user "circleci", rather
@@ -71,11 +72,12 @@ jobs:
             pip install uv
             uv venv
             source .venv/bin/activate
-            uv pip install -r ./docs/requirements.txt
+            uv pip install -r requirements.txt
+            uv pip install -r requirements-dev.txt
       - save_cache:
           paths:
             - ./venv
-          key: v2-dependencies-python3.12-{{ checksum "./docs/requirements.txt" }}
+          key: v2-dependencies-python3.13-{{ checksum "requirements-dev.txt" }}
       - add_ssh_keys:
           # This SSH key is "CircleCI Docs" in https://github.com/move-coop/parsons/settings/keys
           # We need write access to the Parsons repo, so we can push the "gh-pages" branch.
diff --git a/docs/conf.py b/docs/conf.py
old mode 100755
new mode 100644
index d5b37839d7..a529442187
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 # -- Project information -----------------------------------------------------
 
 project = "Parsons"
-copyright = "2019, The Movement Cooperative"
+copyright = "2025, The Movement Cooperative"
 author = "The Movement Cooperative"
 
 # The short X.Y version
@@ -68,7 +68,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
diff --git a/docs/requirements.txt b/docs/requirements.txt
deleted file mode 100644
index 17e537318c..0000000000
--- a/docs/requirements.txt
+++ /dev/null
@@ -1,5 +0,0 @@
--r ../requirements.txt
-Sphinx==8.1.3
-sphinx-rtd-theme==3.0.2
-myst-parser==4.0.1
-sphinx-multiversion
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 185be263ed..3aac7fa1e1 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,3 +9,11 @@ pytest==8.3.5
 requests-mock==1.12.1
 ruff==0.9.10
 testfixtures==8.3.0
+
+# Docs Requirements
+Sphinx==8.1.3;python_version>='3.10'
+Sphinx==7.4.7;python_version<'3.10'
+sphinx-rtd-theme==3.0.2
+myst-parser==4.0.1;python_version>='3.10'
+myst-parser==3.0.1;python_version<'3.10'
+sphinx-multiversion