diff --git a/Cargo.lock b/Cargo.lock
index cc6f216..70826e2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1220,9 +1220,9 @@ dependencies = [
 
 [[package]]
 name = "tree-sitter"
-version = "0.25.10"
+version = "0.26.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78f873475d258561b06f1c595d93308a7ed124d9977cb26b148c2084a4a3cc87"
+checksum = "12987371f54efc9b9306a20dc87ed5aaee9f320c8a8b115e28515c412b2efe39"
 dependencies = [
  "cc",
  "regex",
diff --git a/Cargo.toml b/Cargo.toml
index 80e13b9..103cde9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ serde_json = "=1.0.149"
 sha2 = "=0.10.9"
 shlex = "=1.3.0"
 thiserror = "=2.0.18"
-tree-sitter = "=0.25.10"
+tree-sitter = "=0.26.5"
 tree-sitter-bash = "=0.25.1"
 
 [features]
diff --git a/src/rules/command_parser.rs b/src/rules/command_parser.rs
index 7dbef72..5f07a57 100644
--- a/src/rules/command_parser.rs
+++ b/src/rules/command_parser.rs
@@ -272,7 +272,7 @@ fn collect_commands(node: tree_sitter::Node, source: &[u8], commands: &mut Vec<S
                 if node.field_name_for_child(i as u32) == Some("value") {
                     continue;
                 }
-                if let Some(child) = node.child(i)
+                if let Some(child) = node.child(i as u32)
                     && child.is_named()
                 {
                     collect_commands(child, source, commands);
@@ -290,7 +290,7 @@ fn collect_commands(node: tree_sitter::Node, source: &[u8], commands: &mut Vec<S
             }
             for i in 0..node.child_count() {
                 if node.field_name_for_child(i as u32) == Some("redirect")
-                    && let Some(child) = node.child(i)
+                    && let Some(child) = node.child(i as u32)
                 {
                     collect_substitutions_recursive(child, source, commands);
                 }
@@ -318,7 +318,7 @@ fn collect_commands(node: tree_sitter::Node, source: &[u8], commands: &mut Vec<S
         // command_substitution nodes, and emit the remaining text.
         "command" => {
             for i in 0..node.child_count() {
-                let Some(child) = node.child(i) else {
+                let Some(child) = node.child(i as u32) else {
                     continue;
                 };
                 if !child.is_named() {
@@ -345,7 +345,7 @@ fn collect_commands(node: tree_sitter::Node, source: &[u8], commands: &mut Vec<S
             // node use the field name "redirect".
             let parts: Vec<&str> = (0..node.child_count())
                 .filter_map(|i| {
-                    let child = node.child(i)?;
+                    let child = node.child(i as u32)?;
                     if !child.is_named() {
                         return None;
                     }