diff --git a/Dockerfile b/Dockerfile
index 1e47c92f..0767bbeb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:17-jdk as build
+FROM eclipse-temurin:17-jdk-alpine as build
 WORKDIR /workspace/app
 
 COPY gradlew .
diff --git a/src/main/java/ee/buerokratt/ruuter/configuration/JacksonConfiguration.java b/src/main/java/ee/buerokratt/ruuter/configuration/JacksonConfiguration.java
index 3b34536b..540687dd 100644
--- a/src/main/java/ee/buerokratt/ruuter/configuration/JacksonConfiguration.java
+++ b/src/main/java/ee/buerokratt/ruuter/configuration/JacksonConfiguration.java
@@ -8,6 +8,9 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.http.converter.HttpMessageConverter;
+
+import java.util.Map;
 
 @Configuration
 public class JacksonConfiguration {
@@ -22,7 +25,6 @@ public ObjectMapper objectMapper() {
             return new ObjectMapper();
         else
             return new ObjectMapper().configure(JsonParser.Feature.STRICT_DUPLICATE_DETECTION, true);
-
     }
 
     @Bean
@@ -30,3 +32,4 @@ public ObjectMapper ymlMapper() {
         return new ObjectMapper(new YAMLFactory()).configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
     }
 }
+