diff --git a/pyproject.toml b/pyproject.toml
index 198a3bfb06..1d2d29efd6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ classifiers = [
 
 dependencies = [
     "click",
-    "confuse >= 2.0.0",
+    "confuse == 2.1.0",
     "cvxpy",
     "finufft==2.4.0 ; sys_platform!='darwin'",
     "finufft==2.3.0 ; sys_platform=='darwin'",