diff --git a/Cargo.lock b/Cargo.lock
index 5935aee26..aa5c08ba7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -129,10 +129,11 @@ checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
 [[package]]
 name = "cc"
-version = "1.2.7"
+version = "1.2.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a012a0df96dd6d06ba9a1b29d6402d1a5d77c6befd2566afdc26e10603dc93d7"
+checksum = "e1354349954c6fc9cb0deab020f27f783cf0b604e8bb754dc4658ecf0d29c35f"
 dependencies = [
+ "find-msvc-tools",
  "shlex",
 ]
 
@@ -365,6 +366,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "find-msvc-tools"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ced73b1dacfc750a6db6c0a0c3a3853c8b41997e2e2c563dc90804ae6867959"
+
 [[package]]
 name = "fixedbitset"
 version = "0.4.2"
@@ -692,9 +699,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.79"
+version = "1.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
+checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
 dependencies = [
  "unicode-ident",
 ]
@@ -820,18 +827,28 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "serde"
-version = "1.0.197"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.197"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -840,13 +857,16 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.114"
+version = "1.0.145"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5f09b1bd632ef549eaa9f60a1f8de742bdbc698e6cee2095fc84dde5f549ae0"
+checksum = "402a6f66d8c709116cf22f558eab210f5a50187f702eb4d7e5ef38d9a7f1c79c"
 dependencies = [
+ "indexmap",
  "itoa",
+ "memchr",
  "ryu",
  "serde",
+ "serde_core",
 ]
 
 [[package]]
@@ -933,9 +953,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.55"
+version = "2.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "002a1b3dbf967edfafc32655d0f377ab0bb7b994aa1d32c8cc7e9b8bf3ebb8f0"
+checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -989,13 +1009,14 @@ dependencies = [
 
 [[package]]
 name = "tree-sitter"
-version = "0.24.5"
+version = "0.25.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ac95b18f0f727aaaa012bd5179a1916706ee3ed071920fdbda738750b0c0bf5"
+checksum = "78f873475d258561b06f1c595d93308a7ed124d9977cb26b148c2084a4a3cc87"
 dependencies = [
  "cc",
  "regex",
  "regex-syntax",
+ "serde_json",
  "streaming-iterator",
  "tree-sitter-language",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 641643d05..f26e59d64 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,10 +15,10 @@ edition = "2021"
 # https://releases.rs/ is a useful website to see when different Rust
 # versions were released.
 #
-# For reference, Debian stable is on 1.63 (see
+# For reference, Debian stable is on 1.85 (see
 # https://tracker.debian.org/pkg/rustc) but Debian doesn't currently
 # package difftastic. Other distros are somewhat newer.
-rust-version = "1.75.0"
+rust-version = "1.76.0"
 include = [
         "/build.rs",
         "/src/",
@@ -72,7 +72,7 @@ streaming-iterator = "0.1.9"
 encoding_rs = "0.8.35"
 
 # tree-sitter itself.
-tree-sitter = "0.24.0"
+tree-sitter = "0.25.9"
 tree-sitter-language = "0.1.3"
 
 # tree-sitter parsers that are available on crates.io.
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 198f7078f..9eba63074 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.75.0"
+channel = "1.76.0"
 components = ["rustfmt"]
 profile = "minimal"