diff --git a/pyproject.toml b/pyproject.toml
index b491358..02c9b34 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,6 +38,11 @@ test = [
     "pygambit",
 ]
 
+dev = [
+    "pre-commit",
+    "ruff",
+]
+
 [project.urls]
 Repository = "https://github.com/gambitproject/lemke.git"
 
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index a952eba..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-numpy>=2.2,<2.3
-matplotlib>=3.10,<3.11
-pre-commit