diff --git a/package.json b/package.json
index dea38df..d5cf34a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "genetic-search",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "Multiprocessing genetic algorithm implementation library",
   "license": "MIT",
   "repository": {
diff --git a/src/cache.ts b/src/cache.ts
index 63202fd..8c16ff8 100644
--- a/src/cache.ts
+++ b/src/cache.ts
@@ -1,7 +1,7 @@
 import { GenomeMetricsRow, MetricsCacheInterface } from "./types";
 
 export class DummyMetricsCache implements MetricsCacheInterface {
-  ready(_: number): GenomeMetricsRow | undefined {
+  getReady(_: number): GenomeMetricsRow | undefined {
     return undefined;
   }
 
@@ -35,7 +35,7 @@ export class SimpleMetricsCache implements MetricsCacheInterface {
       : defaultValue;
   }
 
-  ready(genomeId: number): GenomeMetricsRow | undefined {
+  getReady(genomeId: number): GenomeMetricsRow | undefined {
     return this.cache.has(genomeId) ? this.get(genomeId) : undefined;
   }
 
@@ -75,7 +75,7 @@ export class AverageMetricsCache implements MetricsCacheInterface {
     return row.map((x) => x / count);
   }
 
-  ready(): GenomeMetricsRow | undefined {
+  getReady(): GenomeMetricsRow | undefined {
     return undefined;
   }
 
diff --git a/src/strategies.ts b/src/strategies.ts
index 055cc14..26ebc63 100644
--- a/src/strategies.ts
+++ b/src/strategies.ts
@@ -42,7 +42,7 @@ export abstract class BaseMetricsStrategy<
   }
 
   public async run(population: Population<TGenome>, cache: MetricsCacheInterface): Promise<GenerationMetricsMatrix> {
-    const resultsMap = new Map(population.map((genome) => [genome.id, cache.ready(genome.id)]));
+    const resultsMap = new Map(population.map((genome) => [genome.id, cache.getReady(genome.id)]));
 
     const genomesToRun = population.filter((genome) => resultsMap.get(genome.id) === undefined);
     const newResults = await this.execTasks(genomesToRun.map((genome) => this.createTaskInput(genome)));
diff --git a/src/types.ts b/src/types.ts
index 5785531..2cb87ee 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -94,7 +94,7 @@ export interface IdGeneratorInterface<TGenome extends BaseGenome> {
 }
 
 export interface MetricsCacheInterface {
-  ready(genomeId: number): GenomeMetricsRow | undefined;
+  getReady(genomeId: number): GenomeMetricsRow | undefined;
   get(genomeId: number, defaultValue?: GenomeMetricsRow): GenomeMetricsRow | undefined;
   set(genomeId: number, metrics: GenomeMetricsRow): void;
   clear(excludeGenomeIds: number[]): void;