diff --git a/Cargo.lock b/Cargo.lock
index 8bb4df7..7984d34 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -721,11 +721,11 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.34"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1"
+checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -786,18 +786,18 @@ checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 
 [[package]]
 name = "serde"
-version = "1.0.132"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b9875c23cf305cd1fd7eb77234cbb705f21ea6a72c637a5c6db5fe4b8e7f008"
+checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.132"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc0db5cb2556c0e558887d9bbdcf6ac4471e83ff66cf696e5419024d1606276"
+checksum = "1f26faba0c3959972377d3b2d306ee9f71faee9714294e41bb777f83f88578be"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -903,13 +903,13 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.82"
+version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8daf5dd0bb60cbd4137b1b587d2fc0ae729bc07cf01cd70b36a1ed5ade3b9d59"
+checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -974,6 +974,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "unicode-ident"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bd2fe26506023ed7b5e1e315add59d6f584c621d037f9368fea9cfb988f368c"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"