diff --git a/src/types/Args.ts b/src/types/Args.ts
index 4d7b317a..bccfc74a 100644
--- a/src/types/Args.ts
+++ b/src/types/Args.ts
@@ -122,7 +122,7 @@ export class Args {
    * The map of argument names to `CLValue` values.
    */
   @jsonMapMember(String, CLValue, {
-    serializer: serRA,
+    serializer: (map: Map<string, CLValue>) => serRA(map),
     deserializer: desRA
   })
   public args: Map<string, CLValue>;
diff --git a/src/types/EraEnd.ts b/src/types/EraEnd.ts
index adeb74c5..cf497062 100644
--- a/src/types/EraEnd.ts
+++ b/src/types/EraEnd.ts
@@ -142,7 +142,7 @@ export class EraEndV2 {
    */
   @jsonMapMember(String, Array, {
     name: 'rewards',
-    serializer: serializeRewards,
+    serializer: (map: Map<string, CLValueUInt512[]>) => serializeRewards(map),
     deserializer: deserializeRewards
   })
   public rewards: Map<string, CLValueUInt512[]>;
@@ -252,7 +252,7 @@ export class EraEnd {
   @jsonMapMember(String, CLValueUInt512, {
     name: 'rewards',
     deserializer: deserializeRewards,
-    serializer: serializeRewards
+    serializer: (map: Map<string, CLValueUInt512[]>) => serializeRewards(map),
   })
   public rewards: Map<string, CLValueUInt512[]>;
 
diff --git a/src/types/ExecutableDeployItem.ts b/src/types/ExecutableDeployItem.ts
index 4d34d325..2ef78288 100644
--- a/src/types/ExecutableDeployItem.ts
+++ b/src/types/ExecutableDeployItem.ts
@@ -46,7 +46,7 @@ export class ModuleBytes {
   @jsonMember({
     name: 'module_bytes',
     constructor: Uint8Array,
-    serializer: byteArrayJsonSerializer,
+    serializer: (bytes: Uint8Array) => byteArrayJsonSerializer(bytes),
     deserializer: byteArrayJsonDeserializer
   })
   moduleBytes!: Uint8Array;
@@ -56,7 +56,7 @@ export class ModuleBytes {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
@@ -120,7 +120,7 @@ export class StoredContractByHash {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
@@ -171,7 +171,7 @@ export class StoredContractByName {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
@@ -227,7 +227,7 @@ export class StoredVersionedContractByHash {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
@@ -302,7 +302,7 @@ export class StoredVersionedContractByName {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
@@ -348,7 +348,7 @@ export class TransferDeployItem {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   args: Args;
 
diff --git a/src/types/Transaction.ts b/src/types/Transaction.ts
index cdb61d4c..7e20b8d9 100644
--- a/src/types/Transaction.ts
+++ b/src/types/Transaction.ts
@@ -336,7 +336,7 @@ export class Transaction {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   public args: Args;
 
diff --git a/src/types/Transform.ts b/src/types/Transform.ts
index d35028e8..1adda701 100644
--- a/src/types/Transform.ts
+++ b/src/types/Transform.ts
@@ -517,7 +517,7 @@ export class NamedKeyKind {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   public namedKey: Args;
 
@@ -526,7 +526,7 @@ export class NamedKeyKind {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs
+    serializer: (args: Args) => serializeArgs(args, false)
   })
   public name: Args;
 }
diff --git a/src/types/TransformRaw.ts b/src/types/TransformRaw.ts
index 91b0e214..c2b22ae4 100644
--- a/src/types/TransformRaw.ts
+++ b/src/types/TransformRaw.ts
@@ -237,7 +237,7 @@ export class RawWriteCLValue {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs,
+    serializer: (args: Args) => serializeArgs(args, false),
     name: 'WriteCLValue'
   })
   WriteCLValue?: Args;
@@ -253,7 +253,7 @@ export class WriteCLValue {
    */
   @jsonMember(() => Args, {
     deserializer: deserializeArgs,
-    serializer: serializeArgs,
+    serializer: (args: Args) => serializeArgs(args, false),
     name: 'CLValue'
   })
   CLValue?: Args;