diff --git a/src/api/group.ts b/src/api/group.ts
index 8bfcf377..6369ee93 100644
--- a/src/api/group.ts
+++ b/src/api/group.ts
@@ -18,7 +18,7 @@ export default class Group {
     created?: string;
     members?: string[];
 
-    constructor(data: any) {
+    constructor(data: Group) {
         this.id = data.id;
         this.uuid = data.uuid;
         this.name = data.name;
diff --git a/src/api/member.ts b/src/api/member.ts
index 79820c85..72bf0c54 100644
--- a/src/api/member.ts
+++ b/src/api/member.ts
@@ -30,7 +30,7 @@ export default class Member {
     proxy_tags?: Array<proxytag>;
     privacy?: MemberPrivacy
 
-    constructor(data: any) {
+    constructor(data: Member) {
         this.id = data.id;
         this.uuid = data.uuid;
         this.name = data.name;
diff --git a/src/api/system.ts b/src/api/system.ts
index d4cb6393..6a01cdb7 100644
--- a/src/api/system.ts
+++ b/src/api/system.ts
@@ -19,7 +19,7 @@ export default class Sys {
     privacy?: SystemPrivacy;
     color?: string;
 
-    constructor(data: any) {
+    constructor(data: Sys) {
         this.id = data.id;
         this.uuid = data.uuid;
         this.name = data.name;