diff --git a/Cargo.lock b/Cargo.lock
index 90fa03b0..ce592e16 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1028,7 +1028,7 @@ dependencies = [
 [[package]]
 name = "ndc-client"
 version = "0.1.0"
-source = "git+http://github.com/hasura/ndc-spec.git?rev=d8f6160b577820db5adaa987c6c70587dd463c47#d8f6160b577820db5adaa987c6c70587dd463c47"
+source = "git+http://github.com/hasura/ndc-spec.git?rev=cf9f8d2350618b595b7d030eaa1cf0d5312726a1#cf9f8d2350618b595b7d030eaa1cf0d5312726a1"
 dependencies = [
  "async-trait",
  "indexmap 2.1.0",
@@ -1081,7 +1081,7 @@ dependencies = [
 [[package]]
 name = "ndc-test"
 version = "0.1.0"
-source = "git+http://github.com/hasura/ndc-spec.git?rev=d8f6160b577820db5adaa987c6c70587dd463c47#d8f6160b577820db5adaa987c6c70587dd463c47"
+source = "git+http://github.com/hasura/ndc-spec.git?rev=cf9f8d2350618b595b7d030eaa1cf0d5312726a1#cf9f8d2350618b595b7d030eaa1cf0d5312726a1"
 dependencies = [
  "async-trait",
  "clap",
diff --git a/rust-connector-sdk/Cargo.toml b/rust-connector-sdk/Cargo.toml
index 0d6540f2..759e3e59 100644
--- a/rust-connector-sdk/Cargo.toml
+++ b/rust-connector-sdk/Cargo.toml
@@ -13,8 +13,8 @@ path = "bin/main.rs"
 
 [dependencies]
 gdc_rust_types = { git = "https://github.com/hasura/gdc_rust_types.git", rev = "3273434" }
-ndc-client = { git = "http://github.com/hasura/ndc-spec.git", rev = "d8f6160b577820db5adaa987c6c70587dd463c47" }
-ndc-test = { git = "http://github.com/hasura/ndc-spec.git", rev = "d8f6160b577820db5adaa987c6c70587dd463c47" }
+ndc-client = { git = "http://github.com/hasura/ndc-spec.git", rev = "cf9f8d2350618b595b7d030eaa1cf0d5312726a1" }
+ndc-test = { git = "http://github.com/hasura/ndc-spec.git", rev = "cf9f8d2350618b595b7d030eaa1cf0d5312726a1" }
 
 async-trait = "^0.1.74"
 axum = "^0.6.20"