diff --git a/pyproject.toml b/pyproject.toml
index 50a0088..ef6b733 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ classifiers = [
     'Programming Language :: Python :: 3.13',
 ]
 dependencies = [
-    'igraph == 0.11.8',
+    'igraph == 1.0.0',
     'typing_extensions >= 4.0; python_version < "3.10"'
 ]
 
diff --git a/requirements.txt b/requirements.txt
index 7c7db3e..e98e328 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 scikit-build-core==0.10.7
-igraph==0.11.8
+igraph==1.0.0
 pygments>=2.6.1
 types-Pygments
 skytemple-3rdparty-typestubs==1.1.1