diff --git a/components/salsa-2022/src/id.rs b/components/salsa-2022/src/id.rs
index 20f0e6b5..2a8294cb 100644
--- a/components/salsa-2022/src/id.rs
+++ b/components/salsa-2022/src/id.rs
@@ -20,7 +20,7 @@ impl Id {
     pub const MAX_USIZE: usize = Self::MAX_U32 as usize;
 
     #[track_caller]
-    pub fn from_u32(x: u32) -> Self {
+    pub(crate) fn from_u32(x: u32) -> Self {
         assert!(x < Self::MAX_U32);
         Id {
             value: NonZeroU32::new(x + 1).unwrap(),
@@ -32,19 +32,6 @@ impl Id {
     }
 }
 
-impl From<u32> for Id {
-    fn from(n: u32) -> Self {
-        Id::from_u32(n)
-    }
-}
-
-impl From<usize> for Id {
-    fn from(n: usize) -> Self {
-        assert!(n < Id::MAX_USIZE);
-        Id::from_u32(n as u32)
-    }
-}
-
 impl From<Id> for u32 {
     fn from(n: Id) -> Self {
         n.as_u32()
diff --git a/components/salsa-2022/src/input.rs b/components/salsa-2022/src/input.rs
index 12fe2f43..b61dd3ba 100644
--- a/components/salsa-2022/src/input.rs
+++ b/components/salsa-2022/src/input.rs
@@ -40,7 +40,7 @@ where
     pub fn new_input(&mut self, _runtime: &mut Runtime) -> Id {
         let next_id = self.counter;
         self.counter += 1;
-        Id::from_id(crate::Id::from(next_id))
+        Id::from_id(crate::Id::from_u32(next_id))
     }
 }