diff --git a/script/src/scheduler.rs b/script/src/scheduler.rs
index eecf423b9d..aee25168a8 100644
--- a/script/src/scheduler.rs
+++ b/script/src/scheduler.rs
@@ -560,7 +560,7 @@ where
                 _ => (),
             }
         }
-        // Transfering data from write fds to read fds
+        // Transferring data from write fds to read fds
         for (read_vm_id, read_state, write_vm_id, write_state) in pairs {
             let ReadState {
                 length: read_length,
diff --git a/script/testdata/spawn_cases.c b/script/testdata/spawn_cases.c
index 171164df03..121291cb06 100644
--- a/script/testdata/spawn_cases.c
+++ b/script/testdata/spawn_cases.c
@@ -121,7 +121,7 @@ int parent_invalid_fd(uint64_t* pid) {
     err = ckb_write(fds[CKB_STDOUT], data, &data_length);
     CHECK2(err == CKB_OTHER_END_CLOSED, -2);
 
-    // read from fd but the ohter end is closed
+    // read from fd but the other end is closed
     err = ckb_pipe(fds);
     CHECK(err);
     err = ckb_close(fds[CKB_STDOUT]);
diff --git a/util/app-config/src/configs/indexer.rs b/util/app-config/src/configs/indexer.rs
index 1f44a68aa6..0406efd455 100644
--- a/util/app-config/src/configs/indexer.rs
+++ b/util/app-config/src/configs/indexer.rs
@@ -35,7 +35,7 @@ pub struct IndexerConfig {
     /// The init tip block hash
     #[serde(default)]
     pub init_tip_hash: Option<H256>,
-    /// limit of indexer reqeust
+    /// limit of indexer request
     #[serde(default)]
     pub request_limit: Option<usize>,
     /// Rich indexer config options
diff --git a/util/fee-estimator/src/estimator/weight_units_flow.rs b/util/fee-estimator/src/estimator/weight_units_flow.rs
index a834d5a9b0..6349165c5d 100644
--- a/util/fee-estimator/src/estimator/weight_units_flow.rs
+++ b/util/fee-estimator/src/estimator/weight_units_flow.rs
@@ -36,7 +36,7 @@
 //! - New transactions entering the mempool.
 //!
 //!   While it's impossible to predict sudden changes to the speed at which new
-//!   weight is added to the mempool, for simplicty's sake we're going to assume
+//!   weight is added to the mempool, for simplicity's sake we're going to assume
 //!   the flow we measured remains constant: `added_weight = flow * blocks`.
 //!
 //! - Transactions leaving the mempool due to mined blocks. Each block removes