diff --git a/CHANGELOG.md b/CHANGELOG.md
index 036fdaf9..4b801fa6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [5.1.0](https://github.com/webpack-contrib/postcss-loader/compare/v5.0.0...v5.1.0) (2021-03-05)
+
+
+### Features
+
+* added support for registering `context`, `build` and `missing` dependencies ([#518](https://github.com/webpack-contrib/postcss-loader/issues/518)) ([9ce4972](https://github.com/webpack-contrib/postcss-loader/commit/9ce4972c6740c8dd82463fff0934987695ccf7d2)), please read [docs](https://github.com/webpack-contrib/postcss-loader#add-dependencies-contextdependencies-builddependencies-missingdependencies)
+
 ## [5.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.2.0...v5.0.0) (2021-02-02)
 
 
diff --git a/README.md b/README.md
index d7e08807..3a4496b2 100644
--- a/README.md
+++ b/README.md
@@ -934,7 +934,7 @@ module.exports = {
 };
 ```
 
-### Add dependencies
+### Add dependencies, contextDependencies, buildDependencies, missingDependencies
 
 The dependencies are necessary for webpack to understand when it needs to run recompilation on the changed files.
 
@@ -944,7 +944,7 @@ There are two way to add dependencies:
 
 The message should contain the following fields:
 
-- `type` = `dependency` - Message type (require, should be equal `dependency`)
+- `type` = `dependency` - Message type (require, should be equal `dependency`, `context-dependency`, `build-dependency` or `missing-dependency`)
 - `file` - absolute file path (require)
 
 **webpack.config.js**
diff --git a/package-lock.json b/package-lock.json
index 4ff52c3d..e1fa0dbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-loader",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index c9113aef..591b4b65 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-loader",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "description": "PostCSS loader for webpack",
   "license": "MIT",
   "repository": "webpack-contrib/postcss-loader",
diff --git a/src/index.js b/src/index.js
index 9d359720..f582df1e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -120,17 +120,29 @@ export default async function loader(content, sourceMap, meta) {
   }
 
   for (const message of result.messages) {
-    if (message.type === "dependency") {
-      this.addDependency(message.file);
-    }
-
-    if (message.type === "asset" && message.content && message.file) {
-      this.emitFile(
-        message.file,
-        message.content,
-        message.sourceMap,
-        message.info
-      );
+    // eslint-disable-next-line default-case
+    switch (message.type) {
+      case "dependency":
+        this.addDependency(message.file);
+        break;
+      case "build-dependency":
+        this.addBuildDependency(message.file);
+        break;
+      case "missing-dependency":
+        this.addMissingDependency(message.file);
+        break;
+      case "context-dependency":
+        this.addContextDependency(message.file);
+        break;
+      case "asset":
+        if (message.content && message.file) {
+          this.emitFile(
+            message.file,
+            message.content,
+            message.sourceMap,
+            message.info
+          );
+        }
     }
   }
 
diff --git a/test/__snapshots__/loader.test.js.snap b/test/__snapshots__/loader.test.js.snap
index e63f9610..e26bce3e 100644
--- a/test/__snapshots__/loader.test.js.snap
+++ b/test/__snapshots__/loader.test.js.snap
@@ -106,6 +106,10 @@ Warning
 ]
 `;
 
+exports[`loader should register dependencies using the "messages" API: errors 1`] = `Array []`;
+
+exports[`loader should register dependencies using the "messages" API: warnings 1`] = `Array []`;
+
 exports[`loader should reuse PostCSS AST: css 1`] = `
 "a {
   color: black;
diff --git a/test/loader.test.js b/test/loader.test.js
index 832d3880..1c04f144 100644
--- a/test/loader.test.js
+++ b/test/loader.test.js
@@ -81,6 +81,58 @@ describe("loader", () => {
     expect(getErrors(stats)).toMatchSnapshot("errors");
   });
 
+  it('should register dependencies using the "messages" API', async () => {
+    const plugin = () => (css, result) => {
+      result.messages.push(
+        {
+          type: "build-dependency",
+          file: path.resolve(__dirname, "fixtures", "build-dep.html"),
+          content: "",
+          plugin,
+        },
+        {
+          type: "missing-dependency",
+          file: path.resolve(__dirname, "fixtures", "missing-dep.html"),
+          content: "",
+          plugin,
+        },
+        {
+          type: "context-dependency",
+          file: path.resolve(__dirname, "fixtures", "deps"),
+          content: "",
+          plugin,
+        }
+      );
+    };
+
+    const postcssPlugin = postcss.plugin("postcss-plugin", plugin);
+    const compiler = getCompiler("./css/index.js", {
+      postcssOptions: {
+        plugins: [postcssPlugin()],
+      },
+    });
+
+    const stats = await compile(compiler);
+    const {
+      contextDependencies,
+      missingDependencies,
+      buildDependencies,
+    } = stats.compilation;
+
+    expect(contextDependencies).toContain(
+      path.resolve(__dirname, "fixtures", "deps")
+    );
+    expect(missingDependencies).toContain(
+      path.resolve(__dirname, "fixtures", "missing-dep.html")
+    );
+    expect(buildDependencies).toContain(
+      path.resolve(__dirname, "fixtures", "build-dep.html")
+    );
+
+    expect(getWarnings(stats)).toMatchSnapshot("warnings");
+    expect(getErrors(stats)).toMatchSnapshot("errors");
+  });
+
   it("should reuse PostCSS AST", async () => {
     const spy = jest.fn();
     const compiler = getCompiler(