diff --git a/.github/labeler.yml b/.github/labeler.yml
deleted file mode 100644
index 49abd17..0000000
--- a/.github/labeler.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2022 The Serverless Workflow Specification Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"documentation :notebook:":
-  - changed-files:
-      - any-glob-to-any-file: ['contrib/*', '**/*.md']
-kubernetes:
-  - changed-files:
-      - any-glob-to-any-file: ['kubernetes/*', 'hack/builder-gen.sh', 'hack/deepcopy-gen.sh', 'Makefile']
diff --git a/.github/workflows/pull_request_labeler.yml b/.github/workflows/pull_request_labeler.yml
deleted file mode 100644
index f270294..0000000
--- a/.github/workflows/pull_request_labeler.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright 2022 The Serverless Workflow Specification Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-name: "Pull Request Labeler"
-on:
-  - pull_request_target
-
-jobs:
-  labeler:
-    permissions:
-      contents: read
-      pull-requests: write
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/labeler@v5
\ No newline at end of file
diff --git a/Makefile b/Makefile
index a8f36db..ce0bc4f 100644
--- a/Makefile
+++ b/Makefile
@@ -11,12 +11,14 @@ goimports:
 	@goimports -w .
 
 lint:
-	@echo "🚀 Running lint..."
-	@command -v golangci-lint > /dev/null || (echo "🚀 Installing golangci-lint..."; curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b "${GOPATH}/bin")
+	@echo "🚀 Installing/updating golangci-lint…"
+	GO111MODULE=on go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+
+	@echo "🚀 Running lint…"
 	@make addheaders
 	@make goimports
 	@make fmt
-	@./hack/go-lint.sh ${params}
+	@$(GOPATH)/bin/golangci-lint run ./... ${params}
 	@echo "✅  Linting completed!"
 
 .PHONY: test
diff --git a/model/function.go b/model/function.go
index 7cf4197..567cb00 100644
--- a/model/function.go
+++ b/model/function.go
@@ -37,6 +37,8 @@ const (
 	// FunctionTypeCustom property defines a list of function types that are set by the specification. Some runtime
 	// implementations might support additional function types that extend the ones defined in the specification
 	FunctionTypeCustom FunctionType = "custom"
+	// FunctionTypeHttp defines a https://datatracker.ietf.org/doc/html/rfc2616#page-36 as the operation input
+	FunctionTypeHttp FunctionType = "http"
 )
 
 // FunctionType ...
@@ -51,6 +53,7 @@ func (i FunctionType) KindValues() []string {
 		string(FunctionTypeAsyncAPI),
 		string(FunctionTypeOData),
 		string(FunctionTypeCustom),
+		string(FunctionTypeHttp),
 	}
 }
 
@@ -58,6 +61,8 @@ func (i FunctionType) String() string {
 	return string(i)
 }
 
+type FunctionOperation any
+
 // Function ...
 // +builder-gen:new-call=ApplyDefault
 type Function struct {
@@ -70,8 +75,16 @@ type Function struct {
 	// If type is `expression`, defines the workflow expression. If the type is `custom`,
 	// <path_to_custom_script>#<custom_service_method>.
 	// +kubebuilder:validation:Required
-	Operation string `json:"operation" validate:"required"`
-	// Defines the function type. Is either `custom`, `rest`, `rpc`, `expression`, `graphql`, `odata` or `asyncapi`.
+	// If type is `http`, provide the http requst object. https://datatracker.ietf.org/doc/html/rfc2616#page-36
+	// {
+	//   "method": "POST",
+	//   "uri": "https://petstore.swagger.io/v2/pet/",
+	//   "headers": {
+	//     "Content-Type": "application/json"
+	//    }
+	//  }
+	Operation FunctionOperation `json:"operation" validate:"required"`
+	// Defines the function type. Is either `custom`, `rest`, `rpc`, `expression`, `graphql`, `odata` or `asyncapi` or `http`.
 	// Default is `rest`.
 	// +kubebuilder:validation:Enum=rest;rpc;expression;graphql;odata;asyncapi;custom
 	// +kubebuilder:default=rest