diff --git a/src/api/providers/__tests__/gemini.test.ts b/src/api/providers/__tests__/gemini.test.ts
index a8a4eec..e8a5594 100644
--- a/src/api/providers/__tests__/gemini.test.ts
+++ b/src/api/providers/__tests__/gemini.test.ts
@@ -204,7 +204,7 @@ describe("GeminiHandler", () => {
 				geminiApiKey: "test-key",
 			})
 			const modelInfo = invalidHandler.getModel()
-			expect(modelInfo.id).toBe("gemini-2.0-flash-thinking-exp-1219") // Default model
+			expect(modelInfo.id).toBe("gemini-2.0-flash-thinking-exp-01-21") // Default model
 		})
 	})
 })
diff --git a/src/shared/api.ts b/src/shared/api.ts
index cdbe5b7..860eb36 100644
--- a/src/shared/api.ts
+++ b/src/shared/api.ts
@@ -412,7 +412,7 @@ export const openAiModelInfoSaneDefaults: ModelInfo = {
 // Gemini
 // https://ai.google.dev/gemini-api/docs/models/gemini
 export type GeminiModelId = keyof typeof geminiModels
-export const geminiDefaultModelId: GeminiModelId = "gemini-2.0-flash-thinking-exp-1219"
+export const geminiDefaultModelId: GeminiModelId = "gemini-2.0-flash-thinking-exp-01-21"
 export const geminiModels = {
 	"gemini-2.0-flash-thinking-exp-01-21": {
 		maxTokens: 65_536,