diff --git a/Cargo.lock b/Cargo.lock
index e75b3e0..23410b1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -953,8 +953,8 @@ dependencies = [
 
 [[package]]
 name = "ndc-models"
-version = "0.1.5"
-source = "git+http://github.com/hasura/ndc-spec.git?rev=a8b883f95b1f5216467f83a7d4201791e2a474ff#a8b883f95b1f5216467f83a7d4201791e2a474ff"
+version = "0.2.0"
+source = "git+http://github.com/hasura/ndc-spec.git?rev=2893acd5de273667e84f9f87a25901615b368593#2893acd5de273667e84f9f87a25901615b368593"
 dependencies = [
  "indexmap 2.2.6",
  "ref-cast",
@@ -967,7 +967,7 @@ dependencies = [
 
 [[package]]
 name = "ndc-sdk"
-version = "0.2.1"
+version = "0.4.0"
 dependencies = [
  "async-trait",
  "axum",
@@ -1000,8 +1000,8 @@ dependencies = [
 
 [[package]]
 name = "ndc-test"
-version = "0.1.5"
-source = "git+http://github.com/hasura/ndc-spec.git?rev=a8b883f95b1f5216467f83a7d4201791e2a474ff#a8b883f95b1f5216467f83a7d4201791e2a474ff"
+version = "0.2.0"
+source = "git+http://github.com/hasura/ndc-spec.git?rev=2893acd5de273667e84f9f87a25901615b368593#2893acd5de273667e84f9f87a25901615b368593"
 dependencies = [
  "async-trait",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index ed995f2..0f61095 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [workspace]
 resolver = "2"
 
-package.version = "0.2.1"
+package.version = "0.4.0"
 package.edition = "2021"
 package.license = "Apache-2.0"
 
diff --git a/crates/sdk/Cargo.toml b/crates/sdk/Cargo.toml
index 949764f..f5eff84 100644
--- a/crates/sdk/Cargo.toml
+++ b/crates/sdk/Cargo.toml
@@ -24,8 +24,8 @@ rustls = ["reqwest/rustls"]
 ndc-test = ["dep:ndc-test"]
 
 [dependencies]
-ndc-models = { git = "http://github.com/hasura/ndc-spec.git", rev = "a8b883f95b1f5216467f83a7d4201791e2a474ff" }
-ndc-test = { git = "http://github.com/hasura/ndc-spec.git", rev = "a8b883f95b1f5216467f83a7d4201791e2a474ff", optional = true }
+ndc-models = { git = "http://github.com/hasura/ndc-spec.git", rev = "2893acd5de273667e84f9f87a25901615b368593" }
+ndc-test = { git = "http://github.com/hasura/ndc-spec.git", rev = "2893acd5de273667e84f9f87a25901615b368593", optional = true }
 
 async-trait = "0.1.79"
 axum = { version = "0.6.20", features = ["http2"] }
diff --git a/crates/sdk/src/connector/example.rs b/crates/sdk/src/connector/example.rs
index 9e134d5..e800501 100644
--- a/crates/sdk/src/connector/example.rs
+++ b/crates/sdk/src/connector/example.rs
@@ -45,10 +45,12 @@ impl Connector for Example {
                 variables: None,
                 aggregates: None,
                 exists: models::ExistsCapabilities {
-                    nested_collections: None,
+                    named_scopes: None,
+                    unrelated: None,
                 },
                 explain: None,
                 nested_fields: models::NestedFieldCapabilities {
+                    nested_collections: None,
                     filter_by: None,
                     order_by: None,
                     aggregates: None,
@@ -76,6 +78,7 @@ impl Connector for Example {
             procedures: vec![],
             object_types: BTreeMap::new(),
             scalar_types: BTreeMap::new(),
+            capabilities: None,
         }
         .into())
     }