diff --git a/tools/workspace/curl_internal/cmakedefines.bzl b/tools/workspace/curl_internal/cmakedefines.bzl
index f7d0ebe5889a..c08b9040148a 100644
--- a/tools/workspace/curl_internal/cmakedefines.bzl
+++ b/tools/workspace/curl_internal/cmakedefines.bzl
@@ -260,7 +260,6 @@ CMAKE_UNDEFINES = [
     "HAVE_WOLFSSL_DES_ECB_ENCRYPT",
     "HAVE_WOLFSSL_FULL_BIO",
     "HAVE_ZSTD",
-    "HAVE__FSEEKI64",
     "HAVE__SETMODE",
     "NEED_MALLOC_H",
     "NEED_REENTRANT",
diff --git a/tools/workspace/curl_internal/repository.bzl b/tools/workspace/curl_internal/repository.bzl
index 0c974ae1f148..393fe8150d22 100644
--- a/tools/workspace/curl_internal/repository.bzl
+++ b/tools/workspace/curl_internal/repository.bzl
@@ -10,8 +10,8 @@ def curl_internal_repository(
         In case of a cmake_configure_file build error when upgrading curl,
         update cmakedefines.bzl to match the new upstream definitions.
         """,
-        commit = "curl-8_11_0",
-        sha256 = "5a231145114589491fc52da118f9c7ef8abee885d1cb1ced99c7290e9a352f07",  # noqa
+        commit = "curl-8_11_1",
+        sha256 = "78baef817c33a0a11b990d031a706dc1486f614b581e22949fc101add32c4cc8",  # noqa
         build_file = ":package.BUILD.bazel",
         mirrors = mirrors,
     )