diff --git a/Cargo.lock b/Cargo.lock
index 9a32816f..984f2b42 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -979,9 +979,9 @@ checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.56"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/raiden-derive/Cargo.toml b/raiden-derive/Cargo.toml
index c27b9e3d..87e0662c 100644
--- a/raiden-derive/Cargo.toml
+++ b/raiden-derive/Cargo.toml
@@ -13,7 +13,7 @@ proc-macro = true
 quote = "^1.0.26"
 proc-quote = "0.4.0"
 syn = "^1.0"
-proc-macro2 = "^1.0.56"
+proc-macro2 = "^1.0.66"
 ident_case = "^1.0.1"
 convert_case = "^0.4.0"
 safe-builder = { tag = "0.0.6", git = "https://github.com/raiden-rs/safe-builder.git" }