diff --git a/proc-macro-definitions/Cargo.toml b/proc-macro-definitions/Cargo.toml
index 5153521..397b995 100644
--- a/proc-macro-definitions/Cargo.toml
+++ b/proc-macro-definitions/Cargo.toml
@@ -31,7 +31,7 @@ debugless-unwrap = "0.0.4"
 heck = "0.3.1"
 lazy_static = "1.4.0"
 quote = "1.0.10"
-proc-macro-crate = "1.0.0"
+proc-macro-crate = "2.0.0"
 proc-macro2 = "1.0.34"
 take_mut = "0.2.2"
 unzip-n = "0.1.1"