diff --git a/apax.yml b/apax.yml
index fc37064..381c3f5 100644
--- a/apax.yml
+++ b/apax.yml
@@ -17,11 +17,11 @@ targets:
   - 'axunit-llvm'
 # Dependencies
 devDependencies:
-  "@ax/sdk": 3.0.18
+  "@ax/sdk": 4.0.2
   "@simatic-ax/snippetscollection": 0.1.3
 dependencies:
-  "@ax/system-strings": 4.2.3
-  "@simatic-ax/conversion": 3.1.2
+  "@ax/system-strings": 5.0.12
+  "@simatic-ax/conversion": 4.0.1
 registries:
   '@simatic-ax': 'https://npm.pkg.github.com/'
 # Files which 'apax pack' will include
diff --git a/test/Deserializer/TryParse/Test_TryParse.st b/test/Deserializer/TryParse/Test_TryParse.st
index 7f8540a..2bdf360 100644
--- a/test/Deserializer/TryParse/Test_TryParse.st
+++ b/test/Deserializer/TryParse/Test_TryParse.st
@@ -13,6 +13,41 @@ CLASS TryParse
         buffer : ARRAY[0..999] OF CHAR;
     END_VAR
 
+    {Test}
+    Method Public Test_TryParse_Value_as_String
+        VAR
+            JSON_Entry: STRING := '{ "key1": "nestedkey1"}';
+            key: STRING := 'key1';
+            len:DINT;
+            keyFound: BOOL;
+            value: STRING;
+        END_VAR
+
+        len:= Strings.ToArray.OfCharCount(str := JSON_Entry, arr := buffer);
+        deserializer.buffer := REF(buffer);
+
+        keyFound := deserializer.TryParse( key, value);
+        Equal('nestedkey1', value);
+    END_Method
+
+    {Test}
+    Method Public Test_TryParse_Value_as_String2
+        VAR
+            JSON_Entry: STRING := '{"Name": "SIMATIC", data: {plc_type: 1518, OPC_SERVER_ENABLED: true}}';
+            key: STRING := 'Name';
+            len:DINT;
+            keyFound: BOOL;
+            value: STRING;
+        END_VAR
+        JSON_Entry:= '{"Name": "SIMATIC", data: {plc_type: 1518, OPC_SERVER_ENABLED: true}}';
+        key := 'Name';
+        len:= Strings.ToArray.OfCharCount(str := JSON_Entry, arr := buffer);
+        deserializer.buffer := REF(buffer);
+
+        keyFound := deserializer.TryParse( key, value);
+        Equal('SIMATIC', value);
+    END_Method
+
     {Test}
     Method Public Test_TryParse_String
         VAR