diff --git a/CHANGELOG.md b/CHANGELOG.md
index a64fd30..020413d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -94,7 +94,7 @@ unsupported by pyfastg due to not being part of the general SPAdes FASTG dialect
 ### Performance improvements
 
 N/A. The extra layers of validation added in this version might slow down
-pyfastg slightly, but (in our opinion) this is worth it.
+pyfastg slightly, but (in Marcus' opinion, at least) this is worth it.
 
 ### Development improvements
 - Switched from Travis CI to GitHub Actions ([#3](https://github.com/fedarko/pyfastg/issues/3)).
@@ -111,6 +111,9 @@ pyfastg slightly, but (in our opinion) this is worth it.
   non-development dependency of pyfastg is NetworkX. (That being said, we may
   add more dependencies in the future if absolutely necessary.)
 
+- On that note, pinned the minimum NetworkX version to 2. Earlier versions of
+  NetworkX seemed to have problems with pyfastg's use of `.nodes`.
+
 ## pyfastg v0.0.0 (October 14, 2019)
 
 Initial release.
diff --git a/README.md b/README.md
index 33c1708..b87fbfb 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ pip install pyfastg
 ```
 
 pyfastg's only dependency (which should be installed automatically with
-the above command) is [NetworkX](https://networkx.github.io).
+the above command) is [NetworkX](https://networkx.github.io) ≥ 2.
 
 As of writing, pyfastg supports all Python versions ≥ 3.6. pyfastg might be able to work with earlier versions of Python, but we do not explicitly test against these.
 
@@ -213,8 +213,10 @@ All of these commands are covered in pyfastg's
 - Automtaically style the code: `make style`
 
 ## Changelog
-See [`CHANGELOG.md`](https://github.com/fedarko/pyfastg/blob/master/CHANGELOG.md) for information on
-the changes included with new pyfastg releases.
+See pyfastg's
+[`CHANGELOG.md`](https://github.com/fedarko/pyfastg/blob/master/CHANGELOG.md) file
+for information on the changes included with new pyfastg releases.
 
 ## License
-pyfastg is licensed under the MIT License. Please see the `LICENSE` file for details.
+pyfastg is licensed under the MIT License. Please see pyfastg's
+[`LICENSE`](https://github.com/fedarko/pyfastg/blob/master/LICENSE) file for details.
diff --git a/setup.py b/setup.py
index fe8c32c..1b24183 100644
--- a/setup.py
+++ b/setup.py
@@ -17,11 +17,9 @@
 with open("README.md") as f:
     long_description = f.read()
 
-version = "0.1.0"
-
 setup(
     name="pyfastg",
-    version=version,
+    version="0.1.0",
     license="MIT",
     description=description,
     long_description=long_description,
@@ -32,6 +30,6 @@
     url="https://github.com/fedarko/pyfastg",
     classifiers=classifiers,
     packages=find_packages(),
-    install_requires=["networkx"],
+    install_requires=["networkx >= 2"],
     extras_require={"dev": ["pytest", "pytest-cov", "flake8", "black"]},
 )