diff --git a/MODULE.bazel.lock b/MODULE.bazel.lock
index dc1f8f6..131f48a 100644
--- a/MODULE.bazel.lock
+++ b/MODULE.bazel.lock
@@ -161,7 +161,7 @@
   "moduleExtensions": {
     "//cue:extensions.bzl%cue": {
       "general": {
-        "bzlTransitiveDigest": "T7Ftx428/RIoWaSR7Fu+QDd+fGZXIh0Pu3uo/T05dek=",
+        "bzlTransitiveDigest": "fqbRbRy9xMEJ/O1+xSfrR/KkfCznWGJS8sYyTKjEa+o=",
         "usagesDigest": "+lQmNUAhJHUSc7PpyOPTzLUWu369YFAxI3YaNF+ukr4=",
         "recordedFileInputs": {},
         "recordedDirentsInputs": {},
@@ -170,14 +170,14 @@
           "cue_tool": {
             "repoRuleId": "@@//cue/private/tools/cue:toolchain.bzl%_download_tool",
             "attributes": {
-              "version": "v0.15.1"
+              "version": "v0.15.3"
             }
           },
           "cue_tool_toolchains": {
             "repoRuleId": "@@//cue/private/tools/cue:toolchain.bzl%_toolchains_repo",
             "attributes": {
               "tool_repo": "cue_tool",
-              "version": "v0.15.1"
+              "version": "v0.15.3"
             }
           }
         },
diff --git a/cue/private/tools/cue/toolchain.bzl b/cue/private/tools/cue/toolchain.bzl
index 606ee1f..998a9f6 100644
--- a/cue/private/tools/cue/toolchain.bzl
+++ b/cue/private/tools/cue/toolchain.bzl
@@ -3,6 +3,14 @@
 visibility("public")
 
 _TOOLS_BY_RELEASE = {
+    "v0.15.3": {
+        struct(os = "darwin", arch = "amd64"): "44f177363bb59453371d9bf3dd2097c6bd7fc0fccb2eaf2cfde8bc934c8ba174",
+        struct(os = "darwin", arch = "arm64"): "9b84bbd0ef1050b51328e4d9af47b2e88c772765d5c74594277417a4bc083a68",
+        struct(os = "linux", arch = "amd64"): "309bbe62ebb0e74a2b298d2808edb0eadfd19789ed0de259b61721f19e3b5ff0",
+        struct(os = "linux", arch = "arm64"): "db9e6b15d02f838c47b65e4c5184caf8456e389be28a274f5186e19fab335015",
+        struct(os = "windows", arch = "amd64"): "d291bd510887bf1308a6bc07c28d17c7f01bc75e7a885adacdbd30d6d6ecbd20",
+        struct(os = "windows", arch = "arm64"): "f7b72102bcf227800276bfb22d0d16cfcdaeceb79a1e99af492aaa3eea6bb839",
+    },
     "v0.15.1": {
         struct(os = "darwin", arch = "amd64"): "e761c85f060283d7c52b0b80e3ae57b569a0c4e7f7029bdbf38d7f079b2128bc",
         struct(os = "darwin", arch = "arm64"): "9ee183ec8686675a0aea24f9f5cfb64235ee4e7583e8e771432a0bf58e64411a",
@@ -69,7 +77,7 @@ _TOOLS_BY_RELEASE = {
     },
 }
 
-_DEFAULT_TOOL_VERSION = "v0.15.1"
+_DEFAULT_TOOL_VERSION = "v0.15.3"
 
 def known_release_versions():
     return _TOOLS_BY_RELEASE.keys()