diff --git a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/NpmPackages.kt b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/NpmPackages.kt
index 9999dbb6a94..c7238a6fc04 100644
--- a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/NpmPackages.kt
+++ b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/NpmPackages.kt
@@ -6,27 +6,32 @@
 package org.jetbrains.kotlin.generators.gradle.targets.js
 
 val npmPackages = listOf(
-    "dukat",
-    "webpack",
-    "webpack-cli",
-    "webpack-bundle-analyzer",
-    "webpack-dev-server",
-    "source-map-loader",
-    "source-map-support",
-    "css-loader",
-    "style-loader",
-    "to-string-loader",
-    "mini-css-extract-plugin",
-    "mocha",
-    "karma",
-    "karma-chrome-launcher",
-    "karma-phantomjs-launcher",
-    "karma-firefox-launcher",
-    "karma-opera-launcher",
-    "karma-ie-launcher",
-    "karma-safari-launcher",
-    "karma-mocha",
-    "karma-webpack",
-    "karma-coverage",
-    "karma-sourcemap-loader",
+    NpmPackage("dukat", "0.5.8-rc.3"),
+    NpmPackage("webpack"),
+    NpmPackage("webpack-cli"),
+    NpmPackage("webpack-bundle-analyzer"),
+    NpmPackage("webpack-dev-server"),
+    NpmPackage("source-map-loader"),
+    NpmPackage("source-map-support"),
+    NpmPackage("css-loader"),
+    NpmPackage("style-loader"),
+    NpmPackage("to-string-loader"),
+    NpmPackage("mini-css-extract-plugin"),
+    NpmPackage("mocha"),
+    NpmPackage("karma"),
+    NpmPackage("karma-chrome-launcher"),
+    NpmPackage("karma-phantomjs-launcher"),
+    NpmPackage("karma-firefox-launcher"),
+    NpmPackage("karma-opera-launcher"),
+    NpmPackage("karma-ie-launcher"),
+    NpmPackage("karma-safari-launcher"),
+    NpmPackage("karma-mocha"),
+    NpmPackage("karma-webpack"),
+    NpmPackage("karma-coverage"),
+    NpmPackage("karma-sourcemap-loader"),
+)
+
+data class NpmPackage(
+    val name: String,
+    val version: String? = null
 )
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/PackageDto.kt b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/PackageDto.kt
index aa6220bed38..054856ada6e 100644
--- a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/PackageDto.kt
+++ b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/PackageDto.kt
@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.generators.gradle.targets.js
 
 data class Package(
     val name: String,
-    val version: SemVer
+    val version: String
 ) {
     // Used in velocity template
     @Suppress("unused")
@@ -18,7 +18,19 @@ data class Package(
             .joinToString("")
 }
 
-data class PackageInformation(
-    val name: String,
-    val versions: Set<String>
-)
\ No newline at end of file
+sealed class PackageInformation {
+    abstract val name: String
+    abstract val versions: Set<String>
+}
+
+data class RealPackageInformation(
+    override val name: String,
+    override val versions: Set<String>
+) : PackageInformation()
+
+data class HardcodedPackageInformation(
+    override val name: String,
+    val version: String
+) : PackageInformation() {
+    override val versions: Set<String> = setOf(version)
+}
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/VersionFetcher.kt b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/VersionFetcher.kt
index a51c267947d..2656872fdce 100644
--- a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/VersionFetcher.kt
+++ b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/VersionFetcher.kt
@@ -21,15 +21,19 @@ class VersionFetcher : AutoCloseable {
     suspend fun fetch(): List<PackageInformation> {
         return coroutineScope {
             npmPackages
-                .map { async { fetchPackageInformationAsync(it) } }
-                .map { fetched ->
-                    val (packageName, value) = fetched.await()
-                    val fetchedPackageInformation = Gson().fromJson(value, FetchedPackageInformation::class.java)
-                    PackageInformation(
-                        packageName,
-                        fetchedPackageInformation.versions.keys
-                    )
-                }
+                .filter { it.version != null }
+                .map { HardcodedPackageInformation(it.name, it.version!!) } +
+                    npmPackages
+                        .filter { it.version == null }
+                        .map { async { fetchPackageInformationAsync(it.name) } }
+                        .map { fetched ->
+                            val (packageName, value) = fetched.await()
+                            val fetchedPackageInformation = Gson().fromJson(value, FetchedPackageInformation::class.java)
+                            RealPackageInformation(
+                                packageName,
+                                fetchedPackageInformation.versions.keys
+                            )
+                        }
         }
     }
 
diff --git a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/main.kt b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/main.kt
index 85549e70449..e888f086e0d 100644
--- a/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/main.kt
+++ b/libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/main.kt
@@ -53,10 +53,15 @@ fun main() {
 fun findLastVersions(packages: List<PackageInformation>): List<Package> {
     return packages
         .map { packageInformation ->
-            val maximumVersion = packageInformation.versions
-                .map { SemVer.from(it) }
-                .filter { it.preRelease == null && it.build == null }
-                .maxOrNull() ?: throw error("There is no applicable version for ${packageInformation.name}")
+            val maximumVersion = when (packageInformation) {
+                is RealPackageInformation -> packageInformation.versions
+                    .map { SemVer.from(it) }
+                    .filter { it.preRelease == null && it.build == null }
+                    .maxOrNull()
+                    ?.toString()
+                    ?: throw error("There is no applicable version for ${packageInformation.name}")
+                is HardcodedPackageInformation -> packageInformation.version
+            }
 
             Package(
                 packageInformation.name,