diff --git a/src/lib/clipboard.ts b/src/lib/clipboard.ts
index adb974db..4fe94fd0 100644
--- a/src/lib/clipboard.ts
+++ b/src/lib/clipboard.ts
@@ -15,7 +15,7 @@ export interface ClipboardEvent {
 export class ClipboardTextHolder {
     private text: string;
 
-    constructor(text: string) {
+    public constructor(text: string) {
         this.text = text;
     }
 
diff --git a/src/lib/map/amap.ts b/src/lib/map/amap.ts
index 34dc4b73..e9552e35 100644
--- a/src/lib/map/amap.ts
+++ b/src/lib/map/amap.ts
@@ -64,7 +64,7 @@ export class AmapMapInstance implements MapInstance {
     private amapCenterPosition: unknown = null;
     private amapCenterMarker: unknown | null;
 
-    constructor() {
+    public constructor() {
         this.dependencyLoaded = !!AmapMapProvider.AMap;
     }
 
diff --git a/src/lib/map/baidumap.ts b/src/lib/map/baidumap.ts
index 28be74e8..4fdd853c 100644
--- a/src/lib/map/baidumap.ts
+++ b/src/lib/map/baidumap.ts
@@ -54,7 +54,7 @@ export class BaiduMapInstance implements MapInstance {
     private baiduMapCenterPosition: unknown = null;
     private baiduMapCenterMarker: unknown | null;
 
-    constructor() {
+    public constructor() {
         this.dependencyLoaded = !!BaiduMapProvider.BMap;
     }
 
diff --git a/src/lib/map/googlemap.ts b/src/lib/map/googlemap.ts
index 190d4060..50a03c69 100644
--- a/src/lib/map/googlemap.ts
+++ b/src/lib/map/googlemap.ts
@@ -47,7 +47,7 @@ export class GoogleMapInstance implements MapInstance {
     private googleMapInstance: unknown = null;
     private googleMapCenterMarker: unknown | null;
 
-    constructor() {
+    public constructor() {
         this.dependencyLoaded = !!GoogleMapProvider.GoogleMap;
     }
 
diff --git a/src/lib/map/leaflet.ts b/src/lib/map/leaflet.ts
index c51dbadc..9c0bca9d 100644
--- a/src/lib/map/leaflet.ts
+++ b/src/lib/map/leaflet.ts
@@ -71,7 +71,7 @@ export class LeafletMapInstance implements MapInstance {
     private leafletAttribution: unknown | null;
     private leafletCenterMarker: unknown | null;
 
-    constructor(mapProvider: string, mapTileSource: LeafletTileSource) {
+    public constructor(mapProvider: string, mapTileSource: LeafletTileSource) {
         this.dependencyLoaded = !!LeafletMapProvider.Leaflet;
 
         this.mapProvider = mapProvider;
diff --git a/src/models/transaction.ts b/src/models/transaction.ts
index 03126df9..1285211f 100644
--- a/src/models/transaction.ts
+++ b/src/models/transaction.ts
@@ -149,7 +149,7 @@ export class TransactionAmountsRequest {
     public readonly useTransactionTimezone: boolean;
     public readonly query: string;
 
-    constructor(useTransactionTimezone: boolean, query: string) {
+    public constructor(useTransactionTimezone: boolean, query: string) {
         this.useTransactionTimezone = useTransactionTimezone;
         this.query = query;
     }