diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index d551442..4d9503d 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -8,6 +8,6 @@ dependencies:
 - matplotlib=3.8.4
 - pystem=0.0.26
 - match-series
-- hyperspy=2.1.0
+- hyperspy=2.1.1
 - sparse
 - scanf
diff --git a/binder/environment.yml b/binder/environment.yml
index 0cb6f1f..cfdb298 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -5,7 +5,7 @@ dependencies:
 - matplotlib=3.8.4
 - pystem =0.0.26
 - match-series
-- hyperspy=2.1.0
+- hyperspy=2.1.1
 - scanf
 - sparse
 - papermill