diff --git a/data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeyDeserializer.java b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeyDeserializer.java
similarity index 88%
rename from data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeyDeserializer.java
rename to validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeyDeserializer.java
index f99c5cfc50c..d859f3ef5a3 100644
--- a/data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeyDeserializer.java
+++ b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeyDeserializer.java
@@ -11,7 +11,7 @@
  * specific language governing permissions and limitations under the License.
  */
 
-package tech.pegasys.teku.provider;
+package tech.pegasys.teku.validator.client.proposerconfig.loader;
 
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.databind.DeserializationContext;
@@ -19,7 +19,7 @@
 import java.io.IOException;
 import tech.pegasys.teku.bls.BLSPublicKey;
 
-public class BLSPublicKeyDeserializer extends JsonDeserializer<BLSPublicKey> {
+class BLSPublicKeyDeserializer extends JsonDeserializer<BLSPublicKey> {
   @Override
   public BLSPublicKey deserialize(final JsonParser p, final DeserializationContext ctxt)
       throws IOException {
diff --git a/data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeySerializer.java b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeySerializer.java
similarity index 89%
rename from data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeySerializer.java
rename to validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeySerializer.java
index a133ee4fe28..d7d48bea2dd 100644
--- a/data/serializer/src/main/java/tech/pegasys/teku/provider/BLSPublicKeySerializer.java
+++ b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/BLSPublicKeySerializer.java
@@ -11,7 +11,7 @@
  * specific language governing permissions and limitations under the License.
  */
 
-package tech.pegasys.teku.provider;
+package tech.pegasys.teku.validator.client.proposerconfig.loader;
 
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.JsonSerializer;
@@ -20,7 +20,7 @@
 import java.util.Locale;
 import tech.pegasys.teku.bls.BLSPublicKey;
 
-public class BLSPublicKeySerializer extends JsonSerializer<BLSPublicKey> {
+class BLSPublicKeySerializer extends JsonSerializer<BLSPublicKey> {
   @Override
   public void serialize(
       final BLSPublicKey value, final JsonGenerator gen, final SerializerProvider serializers)
diff --git a/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/ProposerConfigLoader.java b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/ProposerConfigLoader.java
index 5f871d9811a..543025c9317 100644
--- a/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/ProposerConfigLoader.java
+++ b/validator/client/src/main/java/tech/pegasys/teku/validator/client/proposerconfig/loader/ProposerConfigLoader.java
@@ -28,8 +28,6 @@
 import tech.pegasys.teku.infrastructure.exceptions.InvalidConfigurationException;
 import tech.pegasys.teku.infrastructure.http.UrlSanitizer;
 import tech.pegasys.teku.infrastructure.jackson.deserializers.bytes.Bytes48KeyDeserializer;
-import tech.pegasys.teku.provider.BLSPublicKeyDeserializer;
-import tech.pegasys.teku.provider.BLSPublicKeySerializer;
 import tech.pegasys.teku.validator.client.ProposerConfig;
 
 public class ProposerConfigLoader {