diff --git a/gradle.properties b/gradle.properties
index e1f379c..c7abff7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -20,7 +20,7 @@ android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
 
-version=0.3.1
+version=0.3.2
 group=org.didcommx
 
 kotlinJvm=1.5.21
diff --git a/lib/build.gradle b/lib/build.gradle
index 72c0ce0..0429736 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -22,13 +22,21 @@ kotlin {
 dependencies {
     implementation "com.nimbusds:nimbus-jose-jwt:${nimbusJoseJWTVersion}"
     implementation "com.github.multiformats:java-multibase:${javaMultibase}"
-    shadow "com.google.crypto.tink:tink:${googleTinkVersion}"
+    implementation "com.google.code.gson:gson:2.9.0"
+    implementation 'com.google.protobuf:protobuf-java:3.20.1'
+    shadow("com.google.crypto.tink:tink:${googleTinkVersion}") {
+        exclude group: 'com.google.code.gson', module: 'gson'
+        exclude group: 'com.google.protobuf', module: 'protobuf-java'
+    }
     shadow "com.zmannotes:varint:${zmanVarint}"
     // implementation 'org.bouncycastle:bcprov-jdk15on:1.69'
 
     // TODO look for a better solution
     // currently it's a workaround for shadow of the above deps
-    testImplementation "com.google.crypto.tink:tink:${googleTinkVersion}"
+    testImplementation("com.google.crypto.tink:tink:${googleTinkVersion}") {
+        exclude group: 'com.google.code.gson', module: 'gson'
+        exclude group: 'com.google.protobuf', module: 'protobuf-java'
+    }
     testImplementation "com.zmannotes:varint:${zmanVarint}"
 
     testImplementation "org.jetbrains.kotlin:kotlin-test"
diff --git a/lib/src/main/kotlin/org/didcommx/didcomm/diddoc/DIDDoc.kt b/lib/src/main/kotlin/org/didcommx/didcomm/diddoc/DIDDoc.kt
index f1d83ef..205b6bb 100644
--- a/lib/src/main/kotlin/org/didcommx/didcomm/diddoc/DIDDoc.kt
+++ b/lib/src/main/kotlin/org/didcommx/didcomm/diddoc/DIDDoc.kt
@@ -64,5 +64,5 @@ data class DIDCommService(
     val id: String,
     val serviceEndpoint: String,
     val routingKeys: List<String>,
-    val accept: List<String>
+    val accept: List<String>?
 )
diff --git a/lib/src/main/kotlin/org/didcommx/didcomm/protocols/routing/Routing.kt b/lib/src/main/kotlin/org/didcommx/didcomm/protocols/routing/Routing.kt
index e784b06..1f988d3 100644
--- a/lib/src/main/kotlin/org/didcommx/didcomm/protocols/routing/Routing.kt
+++ b/lib/src/main/kotlin/org/didcommx/didcomm/protocols/routing/Routing.kt
@@ -60,7 +60,7 @@ internal fun findDIDCommService(
     if (serviceId != null) {
         val didService = didDoc.findDIDCommService(serviceId)
 
-        if (PROFILE_DIDCOMM_V2 !in didService.accept) {
+        if (didService.accept != null && !didService.accept.isEmpty() && PROFILE_DIDCOMM_V2 !in didService.accept) {
             throw DIDCommServiceException(
                 toDid, "service '$serviceId' does not accept didcomm/v2 profile"
             )
@@ -73,7 +73,7 @@ internal fun findDIDCommService(
         // > by protocol availability or preference.
         // https://identity.foundation/didcomm-messaging/spec/#multiple-endpoints
         return try {
-            didDoc.didCommServices.find { PROFILE_DIDCOMM_V2 in it.accept }
+            didDoc.didCommServices.find { it.accept == null || it.accept.isEmpty() || PROFILE_DIDCOMM_V2 in it.accept }
         } catch (e: DIDDocException) {
             null
         }