diff --git a/poetry.lock b/poetry.lock
index 1feaabf..de64ca3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -154,7 +154,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "importlib-metadata"
-version = "3.4.0"
+version = "3.5.0"
 description = "Read metadata from Python packages"
 category = "dev"
 optional = false
@@ -617,7 +617,7 @@ igraph = ["python-igraph"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.1"
-content-hash = "839e3938c135ac4946d410a4b6eb5582c49cccba7b2c860ca522df5160fec353"
+content-hash = "9f0818612cc5da50353fe7c634b270052793a0e0c652c10f5dd19eba43394b71"
 
 [metadata.files]
 atomicwrites = [
@@ -781,8 +781,8 @@ idna = [
     {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-3.4.0-py3-none-any.whl", hash = "sha256:ace61d5fc652dc280e7b6b4ff732a9c2d40db2c0f92bc6cb74e07b73d53a1771"},
-    {file = "importlib_metadata-3.4.0.tar.gz", hash = "sha256:fa5daa4477a7414ae34e95942e4dd07f62adf589143c875c133c1e53c4eff38d"},
+    {file = "importlib_metadata-3.5.0-py3-none-any.whl", hash = "sha256:31c5c29f17d064cc71bf6a005a8b25b3332787ab2e7362d5d258800ac825f471"},
+    {file = "importlib_metadata-3.5.0.tar.gz", hash = "sha256:2a851a30a1fd847cedd68c7c6bfb90e765db6265852f574e9d88bb40f96924ab"},
 ]
 iniconfig = [
     {file = "iniconfig-1.1.1-py2.py3-none-any.whl", hash = "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3"},
diff --git a/pyproject.toml b/pyproject.toml
index df88c75..6684aea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ macrogen = 'macrogen.main:main'
 python = "^3.7.1"
 numpy = "^1.20.1"
 more-itertools = "^8.0.2"
-networkx = ">=2.1"
+networkx = ">=2.5"
 python-igraph = {version = "^0.8.3", optional = true}
 pygraphviz = "^1.5"
 "ruamel.yaml" = "^0.16.5"