diff --git a/Cargo.lock b/Cargo.lock
index 5c86130..8bee3a2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -954,7 +954,7 @@ dependencies = [
 [[package]]
 name = "ndc-models"
 version = "0.1.4"
-source = "git+http://github.com/hasura/ndc-spec.git?branch=samirtalwar/bump#ba1559e131f5cc8d0563fbbc947508ec17dcd91e"
+source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.1.4#20172e3b2552b78d16dbafcd047f559ced420309"
 dependencies = [
  "indexmap 2.2.6",
  "schemars",
@@ -999,7 +999,7 @@ dependencies = [
 [[package]]
 name = "ndc-test"
 version = "0.1.4"
-source = "git+http://github.com/hasura/ndc-spec.git?branch=samirtalwar/bump#ba1559e131f5cc8d0563fbbc947508ec17dcd91e"
+source = "git+http://github.com/hasura/ndc-spec.git?tag=v0.1.4#20172e3b2552b78d16dbafcd047f559ced420309"
 dependencies = [
  "async-trait",
  "clap",
diff --git a/crates/sdk/Cargo.toml b/crates/sdk/Cargo.toml
index 3970f67..451ca0e 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", branch = "samirtalwar/bump" }
-ndc-test = { git = "http://github.com/hasura/ndc-spec.git", branch = "samirtalwar/bump", optional = true }
+ndc-models = { git = "http://github.com/hasura/ndc-spec.git", tag = "v0.1.4" }
+ndc-test = { git = "http://github.com/hasura/ndc-spec.git", tag = "v0.1.4", 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 fecf26e..ce7486a 100644
--- a/crates/sdk/src/connector/example.rs
+++ b/crates/sdk/src/connector/example.rs
@@ -60,6 +60,7 @@ impl Connector for Example {
                     nested_fields: models::NestedFieldCapabilities {
                         filter_by: None,
                         order_by: None,
+                        aggregates: None,
                     },
                 },
                 mutation: models::MutationCapabilities {
@@ -145,7 +146,8 @@ mod tests {
         assert_eq!(response.status(), StatusCode::OK);
 
         let body: ndc_models::CapabilitiesResponse = response.json().await;
-        assert_eq!(body.version, ndc_models::VERSION);
+        // ideally we would get this version from `ndc_models::VERSION`
+        assert_eq!(body.version, "0.1.4");
         Ok(())
     }
 }