diff --git a/Cargo.lock b/Cargo.lock
index 120a1afb8..a28c2a469 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1515,8 +1515,7 @@ dependencies = [
 [[package]]
 name = "stellar-xdr"
 version = "20.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e59cdf3eb4467fb5a4b00b52e7de6dca72f67fac6f9b700f55c95a5d86f09c9d"
+source = "git+https://github.com/stellar/rs-stellar-xdr?rev=8febe921e0b9c157bb7505e0e3149c08771129a5#8febe921e0b9c157bb7505e0e3149c08771129a5"
 dependencies = [
  "arbitrary",
  "base64 0.13.1",
diff --git a/Cargo.toml b/Cargo.toml
index e94c50661..0401a1f89 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,8 +33,8 @@ soroban-builtin-sdk-macros = { version = "=20.3.0", path = "soroban-builtin-sdk-
 # NB: When updating, also update the version in rs-soroban-env dev-dependencies
 [workspace.dependencies.stellar-xdr]
 version = "=20.1.0"
-# git = "https://github.com/stellar/rs-stellar-xdr"
-# rev = "8b9d623ef40423a8462442b86997155f2c04d3a1"
+git = "https://github.com/stellar/rs-stellar-xdr"
+rev = "8febe921e0b9c157bb7505e0e3149c08771129a5"
 default-features = false
 
 [workspace.dependencies.wasmi]
diff --git a/soroban-env-host/Cargo.toml b/soroban-env-host/Cargo.toml
index 43f392226..2e1aa84a1 100644
--- a/soroban-env-host/Cargo.toml
+++ b/soroban-env-host/Cargo.toml
@@ -85,8 +85,8 @@ rustversion = "1.0"
 
 [dev-dependencies.stellar-xdr]
 version = "=20.1.0"
-# git = "https://github.com/stellar/rs-stellar-xdr"
-# rev = "8b9d623ef40423a8462442b86997155f2c04d3a1"
+git = "https://github.com/stellar/rs-stellar-xdr"
+rev = "8febe921e0b9c157bb7505e0e3149c08771129a5"
 default-features = false
 features = ["arbitrary"]