diff --git a/deny.toml b/deny.toml
index a59b54988b78..3eaf976f3cba 100644
--- a/deny.toml
+++ b/deny.toml
@@ -41,3 +41,9 @@ version = "1.0"
 [[bans.skip]]
 name = "bitflags"
 version = "1.0"
+
+# system-deps depends on an old version of toml / toml_edit
+# https://github.com/gdesmott/system-deps/pull/80
+[[bans.skip]]
+name = "toml_edit"
+version = "0.19"
diff --git a/glib-macros/Cargo.toml b/glib-macros/Cargo.toml
index e7f216ccb1fd..a214b36d74c5 100644
--- a/glib-macros/Cargo.toml
+++ b/glib-macros/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro-error = "1.0"
 proc-macro2 = "1.0"
 quote = "1.0"
 syn = { version = "2.0", features = ["full"] }
-proc-macro-crate = "1.0"
+proc-macro-crate = "2.0"
 
 [lib]
 proc-macro = true