diff --git a/src/interfaces/Resolver.ts b/src/interfaces/Resolver.ts
index 64ddee2..ead53fb 100644
--- a/src/interfaces/Resolver.ts
+++ b/src/interfaces/Resolver.ts
@@ -8,7 +8,7 @@ interface IResolver <User, Member, Channel, Role, Guild> {
      * @return {User}  {User}
      * @memberof IResolver
      */
-    resolveUser(resolveable: string, strict?: boolean): User | null
+    resolveUser(resolveable: string, strict?: boolean): Promise<User | null>
 
     /**
      * Should resolve to a member abstraction
@@ -19,7 +19,7 @@ interface IResolver <User, Member, Channel, Role, Guild> {
      * @return {Member}  {Member}
      * @memberof IResolver
      */
-    resolveMember(resolveable: string, strict?: boolean, guild?: Guild): Member | null
+    resolveMember(resolveable: string, strict?: boolean, guild?: Guild): Promise<Member | null>
 
     /**
      * Should resolve to a role abstraction
@@ -30,7 +30,7 @@ interface IResolver <User, Member, Channel, Role, Guild> {
      * @return {Channel}  {Channel}
      * @memberof IResolver
      */
-    resolveChannel(resolveable: string, strict?: boolean, guild?: Guild): Channel | null
+    resolveChannel(resolveable: string, strict?: boolean, guild?: Guild): Promise<Channel | null>
 
     /**
      * Should resolve to a role abstraction
@@ -41,7 +41,7 @@ interface IResolver <User, Member, Channel, Role, Guild> {
      * @return {Role}  {Role}
      * @memberof IResolver
      */
-    resolveRole(resolveable: string, strict?: boolean, guild?: Guild): Role | null
+    resolveRole(resolveable: string, strict?: boolean, guild?: Guild): Promise<Role | null>
 
     /**
      * Should resolve to true when a truthy resolveable is passed, i.e. yes, true, on etc