diff --git a/pixi.toml b/pixi.toml
index 1adcd75b0..622c2720f 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -5,8 +5,7 @@ channels = ["conda-forge", "paulscherrerinstitute"]
 platforms = ["linux-64"]
 
 [dependencies]
-python = "3.9.*"
-bitshuffle = "0.5.2"
+python = "3.8.*"
 wxpython = "*"
 colorama = "*"
 tqdm = "*"