diff --git a/README.md b/README.md
index 011a3f4..57f8194 100755
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ repositories {
     mavenCentral()
 }
 dependencies {
-    implementation("ee.bjarn", "ktify", "0.1.1-hotfix")
+    implementation("ee.bjarn", "ktify", "0.1.2")
 }
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 9e03a98..efa70d2 100755
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -12,7 +12,7 @@ plugins {
 }
 
 group = "ee.bjarn"
-version = "0.1.1-hotfix"
+version = "0.1.2"
 
 repositories {
     mavenCentral()
diff --git a/src/main/kotlin/ee/bjarn/ktify/Ktify.kt b/src/main/kotlin/ee/bjarn/ktify/Ktify.kt
index 91696a2..f4f24ee 100755
--- a/src/main/kotlin/ee/bjarn/ktify/Ktify.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/Ktify.kt
@@ -23,6 +23,7 @@ import kotlinx.serialization.json.JsonObject
 import mu.KotlinLogging
 import java.net.URLEncoder
 import java.util.UUID
+import kotlin.io.encoding.Base64
 
 /**
  *  The main wrapper class
@@ -112,14 +113,14 @@ class KtifyBuilder(
      *  @param  authorizationCode returned by the request to the user
      *  @return The [Ktify] instance
      */
-    @OptIn(InternalAPI::class)
+    @OptIn(InternalAPI::class, kotlin.io.encoding.ExperimentalEncodingApi::class)
     suspend fun build(authorizationCode: String): Ktify {
-        val clientCredentialsResponse: ClientCredentialsResponse =
-            ktifyHttpClient.post("https://accounts.spotify.com/api/token") {
-                header("Content-Type", "application/x-www-form-urlencoded")
-                body =
-                    "grant_type=authorization_code&client_id=$clientId&client_secret=$clientSecret&redirect_uri=$redirectUri&code=$authorizationCode"
-            }.body()
+        val clientCredentialsResponse: ClientCredentialsResponse = ktifyHttpClient.post("https://accounts.spotify.com/api/token") {
+            header("Content-Type", "application/x-www-form-urlencoded")
+            header("Authorization", "Basic ${Base64.encode("$clientId:$clientSecret".encodeToByteArray())}")
+            body =
+                "grant_type=authorization_code&redirect_uri=${URLEncoder.encode(redirectUri, "UTF-8")}&code=$authorizationCode"
+        }.body()
         return Ktify(
             ClientCredentials(
                 clientId,
diff --git a/src/main/kotlin/ee/bjarn/ktify/model/player/CurrentPlayback.kt b/src/main/kotlin/ee/bjarn/ktify/model/player/CurrentPlayback.kt
index 98c1235..0e17dff 100755
--- a/src/main/kotlin/ee/bjarn/ktify/model/player/CurrentPlayback.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/model/player/CurrentPlayback.kt
@@ -2,7 +2,6 @@ package ee.bjarn.ktify.model.player
 
 import ee.bjarn.ktify.model.Episode
 import ee.bjarn.ktify.model.Track
-import ee.bjarn.ktify.model.track.TrackActions
 import ee.bjarn.ktify.model.util.Context
 import kotlinx.serialization.*
 import kotlinx.serialization.descriptors.PrimitiveKind
@@ -32,6 +31,8 @@ sealed class CurrentPlayback {
     @SerialName("repeat_state")
     abstract val repeatState: String?
     abstract val context: Context?
+
+    abstract val actions: CurrentPlaybackActions
 }
 
 @Serializable
@@ -49,8 +50,10 @@ class CurrentPlayingTrack(
     @SerialName("repeat_state")
     override val repeatState: String? = null,
     override val context: Context?,
+    override val actions: CurrentPlaybackActions,
+    @SerialName("smart_shuffle")
+    val smartShuffle: Boolean?,
     val item: Track? = null,
-    val actions: TrackActions,
     val resuming: Boolean? = null
 ) : CurrentPlayback()
 
@@ -69,8 +72,8 @@ class CurrentPlayingEpisode(
     @SerialName("repeat_state")
     override val repeatState: String? = null,
     override val context: Context?,
+    override val actions: CurrentPlaybackActions,
     val item: Episode? = null,
-    val actions: TrackActions,
     val resuming: Boolean? = null
 ) : CurrentPlayback()
 
@@ -90,9 +93,36 @@ class CurrentPlaybackNull(
     override val shuffleState: Boolean? = null,
     @SerialName("repeat_state")
     override val repeatState: String? = null,
-    override val context: Context?
+    override val context: Context?,
+    override val actions: CurrentPlaybackActions,
 ) : CurrentPlayback()
 
+@Serializable
+data class CurrentPlaybackActions(
+    val disallows: Disallows
+)
+
+@Serializable
+data class Disallows(
+    @SerialName("interrupting_playback")
+    val interruptingPlayback: Boolean? = null,
+    val pausing: Boolean? = null,
+    val resuming: Boolean? = null,
+    val seeking: Boolean? = null,
+    @SerialName("skipping_next")
+    val skippingNext: Boolean? = null,
+    @SerialName("skipping_prev")
+    val skippingPrev: Boolean? = null,
+    @SerialName("toggling_repeat_context")
+    val togglingRepeatContext: Boolean? = null,
+    @SerialName("toggling_shuffle")
+    val togglingShuffle: Boolean? = null,
+    @SerialName("toggling_repeat_track")
+    val togglingRepeatTrack: Boolean? = null,
+    @SerialName("transferring_playback")
+    val transferringPlayback: Boolean? = null,
+)
+
 object CurrentPlaybackSerializer : JsonContentPolymorphicSerializer<CurrentPlayback>(CurrentPlayback::class) {
     override fun selectDeserializer(element: JsonElement): DeserializationStrategy<CurrentPlayback> {
         return when (element.jsonObject["item"]?.jsonObject?.get("type")?.jsonPrimitive?.content) {
diff --git a/src/main/kotlin/ee/bjarn/ktify/model/player/Devices.kt b/src/main/kotlin/ee/bjarn/ktify/model/player/Devices.kt
index dae4857..1d621f4 100755
--- a/src/main/kotlin/ee/bjarn/ktify/model/player/Devices.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/model/player/Devices.kt
@@ -20,5 +20,7 @@ data class Device(
     val name: String,
     val type: String,
     @SerialName("volume_percent")
-    val volumePercent: Int
+    val volumePercent: Int,
+    @SerialName("supports_volume")
+    val supportsVolume: Boolean,
 )
diff --git a/src/main/kotlin/ee/bjarn/ktify/model/track/Track.kt b/src/main/kotlin/ee/bjarn/ktify/model/track/Track.kt
index b732148..8a2b69c 100755
--- a/src/main/kotlin/ee/bjarn/ktify/model/track/Track.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/model/track/Track.kt
@@ -43,19 +43,6 @@ data class SavedTrack(
     val track: Track,
 )
 
-@Serializable
-data class TrackActions(
-    @SerialName("is_playing")
-    val isPlaying: Boolean? = null,
-    val disallows: TrackActionsDisallows
-)
-
-@Serializable
-data class TrackActionsDisallows(
-    val pausing: Boolean? = null,
-    val resuming: Boolean? = null
-)
-
 @Serializable
 data class TrackRestriction(
     val reason: RestrictionType
diff --git a/src/main/kotlin/ee/bjarn/ktify/model/util/Context.kt b/src/main/kotlin/ee/bjarn/ktify/model/util/Context.kt
index 1409bba..11bae05 100755
--- a/src/main/kotlin/ee/bjarn/ktify/model/util/Context.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/model/util/Context.kt
@@ -35,4 +35,7 @@ enum class ObjectType {
 
     @SerialName("user")
     USER,
+
+    @SerialName("collection")
+    COLLECTION,
 }
diff --git a/src/main/kotlin/ee/bjarn/ktify/player/KtifyPlayer.kt b/src/main/kotlin/ee/bjarn/ktify/player/KtifyPlayer.kt
index 8256b8d..17780ae 100755
--- a/src/main/kotlin/ee/bjarn/ktify/player/KtifyPlayer.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/player/KtifyPlayer.kt
@@ -112,6 +112,7 @@ class KtifyPlayer internal constructor(val ktify: Ktify) {
         ) {
             method = HttpMethod.Put
             url.takeFrom(ktify.requestHelper.baseUrl + "me/player/play")
+            header("Content-Type", "application/json")
             if (deviceId != null) {
                 parameter("device_id", deviceId)
             }
diff --git a/src/main/kotlin/ee/bjarn/ktify/utils/RequestHelper.kt b/src/main/kotlin/ee/bjarn/ktify/utils/RequestHelper.kt
index 2759fd3..24bb3fb 100755
--- a/src/main/kotlin/ee/bjarn/ktify/utils/RequestHelper.kt
+++ b/src/main/kotlin/ee/bjarn/ktify/utils/RequestHelper.kt
@@ -80,7 +80,7 @@ internal class RequestHelper(
         }
         if (requiresScope != null) { require(clientCredentials.scopes?.contains(requiresScope) ?: false) }
         val responseData: HttpResponse =
-            makeRequest(requiresAuthentication = true, client = ktify.jsonLessHttpClient, builder = builder)
+            makeRequest(requiresAuthentication = true, builder = builder)
         return responseData.status
     }