diff --git a/dev-requirements.txt b/dev-requirements.txt
index e8cab36..40366c9 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -3,7 +3,7 @@ schema-salad[pycodegen]
 # Needs to validate v1.2
 cwltool>=3.0.20200807132242
 
-
+# To check type annotations
 mypy
 
 # For testing
@@ -11,10 +11,8 @@ tox
 pytest
 coverage
 
-# For dev
-sphinx
-sphinx_rtd_theme
-myst-parser
+# To build docs
+-r docs/requirements.txt
 
 # Used to check readme.
 readme
diff --git a/docs/requirements.txt b/docs/requirements.txt
index cbf1e36..8430e28 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,2 +1,3 @@
+myst-parser
 sphinx
 sphinx-rtd-theme
diff --git a/gxformat2/model.py b/gxformat2/model.py
index 241ec67..0dc22fa 100644
--- a/gxformat2/model.py
+++ b/gxformat2/model.py
@@ -10,10 +10,7 @@
     Union,
 )
 
-from typing_extensions import (
-    Literal,
-    TypedDict,
-)
+from typing_extensions import Literal
 
 log = logging.getLogger(__name__)
 
@@ -21,8 +18,6 @@
 ConnectDict = dict
 
 
-EmbeddedLink = TypedDict("EmbeddedLink", {"$link": str})
-
 NativeGalaxyStepType = Literal[
     "subworkflow",
     "data_input",