diff --git a/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/config/ProcessConfiguration.java b/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/config/ProcessConfiguration.java
index 1eebdc5..250fc57 100644
--- a/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/config/ProcessConfiguration.java
+++ b/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/config/ProcessConfiguration.java
@@ -16,6 +16,10 @@
  */
 package org.ceskaexpedice.processplatform.worker.config;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
 import java.nio.charset.StandardCharsets;
 import java.util.Base64;
 import java.util.HashMap;
@@ -85,10 +89,11 @@ public String getOrDefault(String key, String defaultValue) {
         return props.getProperty(key, defaultValue);
     }
 
-    public static Map<String, String> getPluginPayload(ProcessConfiguration processConfig) {
+    public static Map<String, String> getPluginPayload(ProcessConfiguration processConfig) throws JsonProcessingException {
         String payloadBase64 = processConfig.get(PLUGIN_PAYLOAD_BASE64_KEY);
         String payloadJson = new String(Base64.getDecoder().decode(payloadBase64), StandardCharsets.UTF_8);
-        Map<String, String> pluginPayload = parseSimpleJson(payloadJson);
+        ObjectMapper mapper = new ObjectMapper();
+        Map<String, String> pluginPayload = mapper.readValue(payloadJson, new TypeReference<Map<String, String>>() {});
         return pluginPayload;
     }
 
diff --git a/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/plugin/executor/PluginStarter.java b/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/plugin/executor/PluginStarter.java
index 7b52441..553d6b3 100644
--- a/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/plugin/executor/PluginStarter.java
+++ b/process-worker/src/main/java/org/ceskaexpedice/processplatform/worker/plugin/executor/PluginStarter.java
@@ -16,6 +16,7 @@
  */
 package org.ceskaexpedice.processplatform.worker.plugin.executor;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
 import org.ceskaexpedice.processplatform.api.context.PluginContext;
 import org.ceskaexpedice.processplatform.api.context.PluginContextHolder;
 import org.ceskaexpedice.processplatform.common.ApplicationException;
@@ -150,7 +151,7 @@ private static void updatePID(ProcessConfiguration processConfiguration, Manager
     }
 
     private static void runPlugin(ProcessConfiguration processConfig, WorkerConfiguration workerConfig)
-            throws ClassNotFoundException, IllegalAccessException, InvocationTargetException {
+            throws ClassNotFoundException, IllegalAccessException, InvocationTargetException, JsonProcessingException {
         Map<String, String> pluginPayload = getPluginPayload(processConfig);
         String pluginId = processConfig.get(PLUGIN_ID_KEY);
         String mainClass = processConfig.get(MAIN_CLASS_KEY);