diff --git a/TRITON_VERSION b/TRITON_VERSION
index 361b45bd7a..189a1ca31a 100644
--- a/TRITON_VERSION
+++ b/TRITON_VERSION
@@ -1 +1 @@
-2.65.0dev
+2.66.0dev
diff --git a/build.py b/build.py
index 9f7903c5a4..0ca4cb382b 100755
--- a/build.py
+++ b/build.py
@@ -71,8 +71,8 @@
 #
 
 DEFAULT_TRITON_VERSION_MAP = {
-    "release_version": "2.65.0dev",
-    "triton_container_version": "26.01dev",
+    "release_version": "2.66.0dev",
+    "triton_container_version": "26.02dev",
     "upstream_container_version": "25.12",
     "ort_version": "1.23.2",
     "ort_openvino_version": "2025.4.1",