diff --git a/crates/compiler/gen_llvm/src/llvm/convert.rs b/crates/compiler/gen_llvm/src/llvm/convert.rs
index 65b9a1a1c95..c9e6c8cc514 100644
--- a/crates/compiler/gen_llvm/src/llvm/convert.rs
+++ b/crates/compiler/gen_llvm/src/llvm/convert.rs
@@ -14,8 +14,8 @@ use roc_target::TargetInfo;
 
 use super::struct_::RocStruct;
 
-pub fn basic_type_from_layout<'a, 'ctx, 'env>(
-    env: &Env<'a, 'ctx, 'env>,
+pub fn basic_type_from_layout<'a, 'ctx>(
+    env: &Env<'a, 'ctx, '_>,
     layout_interner: &STLayoutInterner<'a>,
     layout: LayoutRepr<'_>,
 ) -> BasicTypeEnum<'ctx> {
diff --git a/crates/compiler/mono/src/drop_specialization.rs b/crates/compiler/mono/src/drop_specialization.rs
index c44e48d0633..e5947737c6c 100644
--- a/crates/compiler/mono/src/drop_specialization.rs
+++ b/crates/compiler/mono/src/drop_specialization.rs
@@ -1504,7 +1504,7 @@ impl<'a> DropSpecializationEnvironment<'a> {
         }
     }
 
-    fn create_symbol<'i>(&self, ident_ids: &'i mut IdentIds, debug_name: &str) -> Symbol {
+    fn create_symbol(&self, ident_ids: &mut IdentIds, debug_name: &str) -> Symbol {
         let ident_id = ident_ids.add_str(debug_name);
         Symbol::new(self.home, ident_id)
     }
diff --git a/crates/compiler/mono/src/reset_reuse.rs b/crates/compiler/mono/src/reset_reuse.rs
index d51e522fa0b..f68da9279b7 100644
--- a/crates/compiler/mono/src/reset_reuse.rs
+++ b/crates/compiler/mono/src/reset_reuse.rs
@@ -1404,8 +1404,8 @@ fn drop_unused_reuse_tokens<'a>(
     })
 }
 
-fn get_reuse_layout_info<'a, 'i>(
-    layout_interner: &'i STLayoutInterner<'a>,
+fn get_reuse_layout_info<'a>(
+    layout_interner: &STLayoutInterner<'a>,
     union_layout: UnionLayout<'a>,
 ) -> TokenLayout {
     let (size, alignment) = union_layout.data_size_and_alignment(layout_interner);