diff --git a/types/webpack/index.d.ts b/types/webpack/index.d.ts
index cf13359e0e..28747291e4 100644
--- a/types/webpack/index.d.ts
+++ b/types/webpack/index.d.ts
@@ -576,6 +576,8 @@ declare namespace webpack {
             priority?: number;
             /** Minimal size for the created chunk */
             minSize?: number;
+            /** Maximum size for the created chunk */
+            maxSize?: number;
             /** Minimum number of times a module has to be duplicated until it's considered for splitting */
             minChunks?: number;
             /** Maximum number of requests which are accepted for on-demand loading */
@@ -592,6 +594,8 @@ declare namespace webpack {
             chunks?: "initial" | "async" | "all" | ((chunk: compilation.Chunk) => boolean);
             /** Minimal size for the created chunk */
             minSize?: number;
+            /** Maximum size for the created chunk */
+            maxSize?: number;
             /** Minimum number of times a module has to be duplicated until it's considered for splitting */
             minChunks?: number;
             /** Maximum number of requests which are accepted for on-demand loading */
diff --git a/types/webpack/webpack-tests.ts b/types/webpack/webpack-tests.ts
index ab0755d0e6..626aba6ac9 100644
--- a/types/webpack/webpack-tests.ts
+++ b/types/webpack/webpack-tests.ts
@@ -632,12 +632,16 @@ configuration = {
     mode: "production",
     optimization: {
         splitChunks: {
+            minSize: 30000,
+            maxSize: 50000,
             cacheGroups: {
                 default: false,
                 vendor: {
                     chunks: "initial",
                     test: "node_modules",
                     name: "vendor",
+                    minSize: 30000,
+                    maxSize: 50000,
                     enforce: true
                 }
             }