diff --git a/scib/preprocessing.py b/scib/preprocessing.py
index cbcec346..c91bac1b 100644
--- a/scib/preprocessing.py
+++ b/scib/preprocessing.py
@@ -345,11 +345,11 @@ def normalize(
 
     # Free memory in R
     ro.r("rm(list=ls())")
-    ro.r("lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE)")
-    ro.r(
-        'invisible(lapply(paste0("package:", names(sessionInfo()$otherPkgs)), '
-        "detach, character.only=TRUE, unload=TRUE))"
-    )
+    # ro.r("lapply(names(sessionInfo()$loadedOnly), require, character.only = TRUE)")
+    # ro.r(
+    #     'invisible(lapply(paste0("package:", names(sessionInfo()$otherPkgs)), '
+    #     "detach, character.only=TRUE, unload=TRUE))"
+    # )
     ro.r("gc()")
 
     anndata2ri.deactivate()