diff --git a/go.mod b/go.mod
index fd26121..03daf49 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	github.com/hashicorp/terraform-plugin-go v0.21.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.32.0
-	github.com/humanitec/humanitec-go-autogen v0.0.0-20240313140210-52935f0baed6
+	github.com/humanitec/humanitec-go-autogen v0.0.0-20240409130502-cfb171fe9dc4
 	github.com/stretchr/testify v1.9.0
 )
 
diff --git a/go.sum b/go.sum
index 0f3e1aa..94aad54 100644
--- a/go.sum
+++ b/go.sum
@@ -120,8 +120,8 @@ github.com/hashicorp/yamux v0.1.1/go.mod h1:CtWFDAQgb7dxtzFs4tWbplKIe2jSi3+5vKbg
 github.com/huandu/xstrings v1.3.3/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/huandu/xstrings v1.4.0 h1:D17IlohoQq4UcpqD7fDk80P7l+lwAmlFaBHgOipl2FU=
 github.com/huandu/xstrings v1.4.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
-github.com/humanitec/humanitec-go-autogen v0.0.0-20240313140210-52935f0baed6 h1:vvzktUEv99nnWHzzqb6moBiNJaC9I61CUf44l9AofwQ=
-github.com/humanitec/humanitec-go-autogen v0.0.0-20240313140210-52935f0baed6/go.mod h1:WqItJ/MhAHcjP7LIhIt2/NrgXeXRbLuxvXlin7qY0j4=
+github.com/humanitec/humanitec-go-autogen v0.0.0-20240409130502-cfb171fe9dc4 h1:5Axj0K5JH9YGaKohz8GqL+BcLLBwV5nn16l42p8PnMM=
+github.com/humanitec/humanitec-go-autogen v0.0.0-20240409130502-cfb171fe9dc4/go.mod h1:WqItJ/MhAHcjP7LIhIt2/NrgXeXRbLuxvXlin7qY0j4=
 github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
 github.com/imdario/mergo v0.3.15 h1:M8XP7IuFNsqUx6VPK2P9OSmsYsI/YFaGil0uD21V3dM=
 github.com/imdario/mergo v0.3.15/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
diff --git a/internal/provider/resource_environment_type.go b/internal/provider/resource_environment_type.go
index f7febe1..b7a28b4 100644
--- a/internal/provider/resource_environment_type.go
+++ b/internal/provider/resource_environment_type.go
@@ -148,7 +148,34 @@ func (r *ResourceEnvironmentType) Read(ctx context.Context, req resource.ReadReq
 }
 
 func (r *ResourceEnvironmentType) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
-	resp.Diagnostics.AddError("UNSUPPORTED_OPERATION", "Updating an environment type is currently not supported")
+	var data *EnvironmentTypeModel
+
+	// Read Terraform plan data into the model
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
+
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	id := data.ID.ValueString()
+
+	httpResp, err := r.client.UpdateEnvironmentTypeWithResponse(ctx, r.orgId, id, client.UpdateEnvironmentTypeJSONRequestBody{
+		Description: data.Description.ValueStringPointer(),
+	})
+	if err != nil {
+		resp.Diagnostics.AddError(HUM_CLIENT_ERR, fmt.Sprintf("Unable to update environment type, got error: %s", err))
+		return
+	}
+
+	if httpResp.StatusCode() != 200 {
+		resp.Diagnostics.AddError(HUM_API_ERR, fmt.Sprintf("Unable to update environment type, unexpected status code: %d, body: %s", httpResp.StatusCode(), httpResp.Body))
+		return
+	}
+
+	parseEnvironmentTypeResponse(httpResp.JSON200, data)
+
+	// Save data into Terraform state
+	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
 }
 
 func (r *ResourceEnvironmentType) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {