diff --git a/src/rustfmt.toml b/src/rustfmt.toml
index cdac04a..47bf9bf 100644
--- a/src/rustfmt.toml
+++ b/src/rustfmt.toml
@@ -19,7 +19,7 @@ fn_single_line = false
 where_single_line = true
 imports_indent = "Visual"
 imports_layout = "Mixed"
-merge_imports = true
+imports_granularity = "Crate"
 group_imports = "StdExternalCrate"
 reorder_imports = true
 reorder_modules = true
@@ -54,7 +54,7 @@ use_field_init_shorthand = false
 force_explicit_abi = true
 condense_wildcard_suffixes = false
 color = "Auto"
-required_version = "1.4.37"
+required_version = "1.4.38"
 unstable_features = false
 disable_all_formatting = false
 skip_children = false