diff --git a/Cargo.lock b/Cargo.lock
index a5d5a8a052..c65773b86d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1842,9 +1842,9 @@ dependencies = [
 
 [[package]]
 name = "inventory"
-version = "0.3.0"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0257e268c91daba296499206db5dd5a058875936bec3d8429b5f3e20ec9dc9a"
+checksum = "84344c6e0b90a9e2b6f3f9abe5cc74402684e348df7b32adca28747e0cef091a"
 dependencies = [
  "ctor",
  "ghost",
@@ -5089,9 +5089,9 @@ checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "typetag"
-version = "0.2.1"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62a3f3e32f68a8a611e8b98a14e058954f1b81d6eb6af50e2349bf322ae4062b"
+checksum = "4080564c5b2241b5bff53ab610082234e0c57b0417f4bd10596f183001505b8a"
 dependencies = [
  "erased-serde",
  "inventory",
@@ -5102,9 +5102,9 @@ dependencies = [
 
 [[package]]
 name = "typetag-impl"
-version = "0.2.1"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "762400b16d1815702b6a22e71764f5936ef5d2c4dcff95497f874c53594d59fd"
+checksum = "e60147782cc30833c05fba3bab1d9b5771b2685a2557672ac96fa5d154099c0e"
 dependencies = [
  "proc-macro2",
  "quote",