diff --git a/Cargo.lock b/Cargo.lock
index 0702bae..c922d7d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1722,7 +1722,7 @@ version = "0.1.0"
 dependencies = [
  "serde_json",
  "soroban-spec 26.1.0",
- "stellar-xdr 26.0.1",
+ "stellar-xdr 27.0.0",
 ]
 
 [[package]]
diff --git a/spec-extractor/Cargo.toml b/spec-extractor/Cargo.toml
index 50c61d5..f0ad3d8 100644
--- a/spec-extractor/Cargo.toml
+++ b/spec-extractor/Cargo.toml
@@ -7,4 +7,4 @@ publish = false
 [dependencies]
 serde_json = "1"
 soroban-spec = "26.1.0"
-stellar-xdr = "26.0.1"
+stellar-xdr = "27.0.0"