diff --git a/build.gradle b/build.gradle
deleted file mode 100644
index 0145d6f..0000000
--- a/build.gradle
+++ /dev/null
@@ -1,33 +0,0 @@
-buildscript {
-    ext.junit_version = "4.13.2"
-}
-
-plugins {
-    id 'java-library'
-}
-
-repositories {
-    mavenCentral()
-}
-
-group 'uk.co.mainwave.mimetypes'
-version getVersionFromGit()
-
-sourceCompatibility = JavaVersion.VERSION_1_8
-
-dependencies {
-    testImplementation "junit:junit:$junit_version"
-}
-
-def getVersionFromGit() {
-    try {
-        def stdout = new ByteArrayOutputStream()
-        exec {
-            commandLine "git", "describe", "--tags", "--always"
-            standardOutput = stdout
-        }
-        return stdout.toString().trim()
-    } catch (ignored) {
-        return "1.0.0"
-    }
-}
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 0000000..b018450
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,35 @@
+import java.io.BufferedReader
+import java.io.InputStreamReader
+
+plugins {
+    `java-library`
+}
+
+val junitVersion = "4.13.2"
+
+repositories {
+    mavenCentral()
+}
+
+group = "uk.co.mainwave.mimetypes"
+version = getVersionFromGit()
+
+java.sourceCompatibility = JavaVersion.VERSION_1_8
+
+dependencies {
+    testImplementation("junit:junit:$junitVersion")
+}
+
+fun getVersionFromGit(): String {
+    val processBuilder = ProcessBuilder(listOf("git", "describe", "--tags", "--always"))
+    try {
+        val process = processBuilder.start()
+        val reader = BufferedReader(InputStreamReader(process.inputStream))
+        val output = StringBuilder()
+        output.append(reader.readLine())
+        process.waitFor()
+        return output.toString()
+    } catch (e: Exception) {
+        return "1.0.0"
+    }
+}
diff --git a/settings.gradle b/settings.gradle
deleted file mode 100644
index f5acecc..0000000
--- a/settings.gradle
+++ /dev/null
@@ -1,2 +0,0 @@
-rootProject.name = 'mimetypes'
-
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..c99f91e
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,2 @@
+rootProject.name = "mimetypes"
+