diff --git a/setup.cfg b/setup.cfg
index d2f5700..cf89df9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -17,7 +17,7 @@ classifiers =
 packages = find_namespace:
 python_requires = >=3.10
 install_requires =
-    pysr>=1.5.0,<=1.5.10
+    pysr>=1.5.0,<=2.0.0
     lmfit>=1.3.0,<1.4.0
     matplotlib>=3.10.0,<4.0.0
     seaborn>=0.13.0,<0.14.0