diff --git a/package.json b/package.json
index 992433e17e6c1..d4d3706d8b6b8 100644
--- a/package.json
+++ b/package.json
@@ -300,6 +300,7 @@
     "p-retry": "^4.2.0",
     "papaparse": "^5.2.0",
     "pdfmake": "^0.1.65",
+    "peggy": "^1.0.0",
     "pegjs": "0.10.0",
     "pluralize": "3.1.0",
     "pngjs": "^3.4.0",
diff --git a/packages/kbn-tinymath/BUILD.bazel b/packages/kbn-tinymath/BUILD.bazel
index 9d521776fb491..ae029c88774e8 100644
--- a/packages/kbn-tinymath/BUILD.bazel
+++ b/packages/kbn-tinymath/BUILD.bazel
@@ -1,5 +1,5 @@
 load("@build_bazel_rules_nodejs//:index.bzl", "js_library", "pkg_npm")
-load("@npm//pegjs:index.bzl", "pegjs")
+load("@npm//peggy:index.bzl", "peggy")
 
 PKG_BASE_NAME = "kbn-tinymath"
 PKG_REQUIRE_NAME = "@kbn/tinymath"
@@ -30,16 +30,16 @@ DEPS = [
   "@npm//lodash",
 ]
 
-pegjs(
+peggy(
   name = "grammar",
   data = [
-    ":grammar/grammar.pegjs"
+    ":grammar/grammar.peggy"
   ],
   output_dir = True,
   args = [
     "-o",
     "$(@D)/index.js",
-    "./%s/grammar/grammar.pegjs" % package_name()
+    "./%s/grammar/grammar.peggy" % package_name()
   ],
 )
 
diff --git a/packages/kbn-tinymath/grammar/grammar.pegjs b/packages/kbn-tinymath/grammar/grammar.peggy
similarity index 100%
rename from packages/kbn-tinymath/grammar/grammar.pegjs
rename to packages/kbn-tinymath/grammar/grammar.peggy
diff --git a/yarn.lock b/yarn.lock
index f4d7684174967..465667230b639 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21252,6 +21252,11 @@ pdfmake@^0.1.65:
     pdfkit "^0.11.0"
     svg-to-pdfkit "^0.1.8"
 
+peggy@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/peggy/-/peggy-1.0.0.tgz#df6c7816c9df0ef35e071aaf96836cb866fe7eb4"
+  integrity sha512-lH12sxAXj4Aug+vH6IGoByIQOREIlhH+x4Uzb9kce6DD8wcGeidkC0JYEOwHormKrLt5BFLTbR4PuD/tiMOirQ==
+
 pegjs@0.10.0:
   version "0.10.0"
   resolved "https://registry.yarnpkg.com/pegjs/-/pegjs-0.10.0.tgz#cf8bafae6eddff4b5a7efb185269eaaf4610ddbd"