diff --git a/pyproject.toml b/pyproject.toml
index 512f8c69b..f4b05be8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
     "kikuchipy>=0.8.2",
     "pyxem>=0.14.2",
     "zipfile37==0.1.3",
-    "nionswift==0.16.8",
+    "nionswift>=0.16.8",
     "tzlocal<=4.3",
     "scipy>=1.7.1",
     "lark>=1.1.5",