diff --git a/example/api/api.test.ts b/example/api/api.test.ts
index 136bce9..f6c0210 100644
--- a/example/api/api.test.ts
+++ b/example/api/api.test.ts
@@ -48,6 +48,22 @@ describe('CacheManager - OpenAPI File-based Sources', () => {
             assert.ok(deleteUserEndpoint, 'Should have DELETE /users/{id} endpoint');
         });
 
+        it('should replace an existing cache entry when refreshing a source', async () => {
+            const source = {
+                name: 'TestOpenAPIJSON',
+                type: SourceType.API,
+                path: join(fixturesPath, 'json', 'openapi-schema.json')
+            };
+
+            await setupCacheWithSources([source]);
+            await CacheManager.refresh();
+
+            const docs = await CacheManager.getDocs();
+
+            assert.strictEqual(docs.length, 1, 'Should keep one cache entry per source');
+            assert.strictEqual(docs[0].name, source.name, 'Cache entry name should match');
+        });
+
         it('should retrieve specific endpoint details from OpenAPI JSON schema', async () => {
             await setupCacheWithSources([
                 {
diff --git a/example/xquik-api-sources.json b/example/xquik-api-sources.json
new file mode 100644
index 0000000..3412dbd
--- /dev/null
+++ b/example/xquik-api-sources.json
@@ -0,0 +1,8 @@
+[
+  {
+    "name": "Xquik",
+    "type": "api",
+    "method": "GET",
+    "url": "https://xquik.com/openapi.json"
+  }
+]
diff --git a/src/utils/cache.ts b/src/utils/cache.ts
index bc763f1..fe1b783 100644
--- a/src/utils/cache.ts
+++ b/src/utils/cache.ts
@@ -63,7 +63,14 @@ class Cache {
     }
 
     public static set(entry: CacheEntry): void {
-        this.docs.push(entry);
+        const existingEntryIndex = this.docs.findIndex(doc => doc.source.name === entry.source.name);
+
+        if (existingEntryIndex === -1) {
+            this.docs.push(entry);
+            return;
+        }
+
+        this.docs[existingEntryIndex] = entry;
     }
 
     public static hasExpired(entry: CacheEntry): boolean {