diff --git a/backend/pom.xml b/backend/pom.xml
index f54337aa..afe508da 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -10,7 +10,7 @@
     <version>0.0.0-SNAPSHOT</version>
 
     <properties>
-        <dropwizard.version>2.0.23</dropwizard.version>
+        <dropwizard.version>2.0.24</dropwizard.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -52,17 +52,17 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.31</version>
+            <version>1.7.32</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.4</version>
+            <version>1.2.5</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.2.4</version>
+            <version>1.2.5</version>
         </dependency>
 
         <dependency>
diff --git a/webui/src/actions/toolcall.jsx b/webui/src/actions/toolcall.jsx
index b1d6bd43..43d17944 100644
--- a/webui/src/actions/toolcall.jsx
+++ b/webui/src/actions/toolcall.jsx
@@ -69,10 +69,10 @@ export function getInvocationURL(tool, resourceList) {
 function getServiceParameter(param, resourceList, inputs, match) {
     if (!param.bind) {
         if (param.value) {
-            return param.value;
+            return [param.value];
         } else {
             console.error("missing param bind and value:", param);
-            return {error: "Incorrect tool specification: " + param.name};
+            return [{error: "Incorrect tool specification: " + param.name}];
         }
     }
 
@@ -80,7 +80,7 @@ function getServiceParameter(param, resourceList, inputs, match) {
     const inputIndex = inputs.findIndex(input => input.id == inputID);
     if (inputIndex < 0) {
         console.error("cannot find input with id:", inputID);
-        return {error: "Incorrect tool specification: " + inputID};
+        return [{error: "Incorrect tool specification: " + inputID}];
     }
 
     const resourceIndices = findAllIndices(match, inputIndex);