diff --git a/core/builtins/build.gradle.kts b/core/builtins/build.gradle.kts
index d8de0b7d66f..badc151963c 100644
--- a/core/builtins/build.gradle.kts
+++ b/core/builtins/build.gradle.kts
@@ -1,3 +1,4 @@
+import org.gradle.api.tasks.PathSensitivity.RELATIVE
 import java.io.File
 
 plugins {
@@ -20,9 +21,9 @@ val prepareSources by tasks.registering(Sync::class) {
 
 val serialize by tasks.registering(NoDebugJavaExec::class) {
     dependsOn(prepareSources)
-    val outDir = "$buildDir/$name"
+    val outDir = buildDir.resolve(name)
     val inDirs = arrayOf(builtinsSrc, builtinsNative, builtinsCherryPicked)
-    inDirs.forEach { inputs.dir(it) }
+    inDirs.forEach { inputs.dir(it).withPathSensitivity(RELATIVE) }
 
     outputs.dir(outDir)
     outputs.cacheIf { true }
@@ -30,7 +31,10 @@ val serialize by tasks.registering(NoDebugJavaExec::class) {
     classpath(rootProject.buildscript.configurations["bootstrapCompilerClasspath"])
     main = "org.jetbrains.kotlin.serialization.builtins.RunKt"
     jvmArgs("-Didea.io.use.nio2=true")
-    args(outDir, *inDirs)
+    args(
+        outDir.relativeTo(projectDir),
+        *inDirs.map { it.relativeTo(projectDir) }.toTypedArray()
+    )
 }
 
 val builtinsJar by task<Jar> {
diff --git a/libraries/reflect/build.gradle.kts b/libraries/reflect/build.gradle.kts
index 5e91419d3f9..3fae07e42eb 100644
--- a/libraries/reflect/build.gradle.kts
+++ b/libraries/reflect/build.gradle.kts
@@ -4,6 +4,7 @@ import com.github.jengelman.gradle.plugins.shadow.transformers.Transformer
 import com.github.jengelman.gradle.plugins.shadow.transformers.TransformerContext
 import kotlinx.metadata.jvm.KmModuleVisitor
 import kotlinx.metadata.jvm.KotlinModuleMetadata
+import org.gradle.api.tasks.PathSensitivity.RELATIVE
 import proguard.gradle.ProGuardTask
 import shadow.org.apache.tools.zip.ZipEntry
 import shadow.org.apache.tools.zip.ZipOutputStream
@@ -126,7 +127,7 @@ val stripMetadata by tasks.registering {
     dependsOn(reflectShadowJar)
     val inputJar = provider { reflectShadowJar.get().outputs.files.singleFile }
     val outputJar = File("$libsDir/kotlin-reflect-stripped.jar")
-    inputs.file(inputJar)
+    inputs.file(inputJar).withPathSensitivity(RELATIVE)
     outputs.file(outputJar)
     outputs.cacheIf { true }
     doLast {
diff --git a/libraries/stdlib/js-v1/build.gradle b/libraries/stdlib/js-v1/build.gradle
index f3d04362d79..e67b7949b1f 100644
--- a/libraries/stdlib/js-v1/build.gradle
+++ b/libraries/stdlib/js-v1/build.gradle
@@ -23,8 +23,8 @@ def builtinsSrcDir2 = "${buildDir}/builtin-sources-for-builtins"
 def commonSrcDir = "${projectDir}/../src/kotlin"
 def commonSrcDir2 = "${projectDir}/../common/src"
 def jsCommonDir = "${projectDir}/../js"
-def coroutinesExpJsSrcDir = "${rootDir}/libraries/stdlib/coroutines-experimental/js/src"
 
+def coroutinesExpJsSrcDir = "${rootDir}/libraries/stdlib/coroutines-experimental/js/src"
 def builtinsDir = "${rootDir}/core/builtins"
 def unsignedCommonSrcDir = "${rootDir}/libraries/stdlib/unsigned/src"
 def coroutinesJsModuleName = 'kotlin-stdlib-coroutines'
@@ -146,7 +146,10 @@ compileKotlin2Js {
         sourceMap = true
         sourceMapPrefix = "./"
         freeCompilerArgs += [
-            "-source-map-base-dirs", [builtinsSrcDir, jsSrcDir, jsCommonSrcDir, commonSrcDir, commonSrcDir2, unsignedCommonSrcDir].collect { file(it).absoluteFile }.join(File.pathSeparator),
+            "-source-map-base-dirs",
+            [builtinsSrcDir, jsSrcDir, jsCommonSrcDir, commonSrcDir, commonSrcDir2, unsignedCommonSrcDir]
+                    .collect { file(it).absoluteFile }
+                    .join(File.pathSeparator),
             "-Xuse-experimental=kotlin.Experimental",
             "-Xuse-experimental=kotlin.ExperimentalMultiplatform",
             "-Xuse-experimental=kotlin.contracts.ExperimentalContracts",
@@ -184,11 +187,11 @@ compileTestKotlin2Js {
 
 task compileJs(type: NoDebugJavaExec) {
     dependsOn compileBuiltinsKotlin2Js, compileKotlin2Js, compileCoroutinesExperimentalKotlin2Js
-    inputs.files(compileBuiltinsKotlin2Js.outputs.files)
-    inputs.files(compileKotlin2Js.outputs.files)
-    inputs.files(compileCoroutinesExperimentalKotlin2Js.outputs.files)
-    inputs.dir(jsSrcDir)
-    inputs.dir(jsCommonSrcDir)
+    inputs.files(compileBuiltinsKotlin2Js.outputs.files).withPathSensitivity(PathSensitivity.RELATIVE)
+    inputs.files(compileKotlin2Js.outputs.files).withPathSensitivity(PathSensitivity.RELATIVE)
+    inputs.files(compileCoroutinesExperimentalKotlin2Js.outputs.files).withPathSensitivity(PathSensitivity.RELATIVE)
+    inputs.dir(jsSrcDir).withPathSensitivity(PathSensitivity.RELATIVE)
+    inputs.dir(jsCommonSrcDir).withPathSensitivity(PathSensitivity.RELATIVE)
 
     outputs.file(jsOutputFile)
     outputs.file("${jsOutputFile}.map")