diff --git a/package.json b/package.json
index 540473ad82091..bca3b37168bfa 100644
--- a/package.json
+++ b/package.json
@@ -1790,7 +1790,7 @@
     "openapi-types": "^12.1.3",
     "p-reflect": "2.1.0",
     "pbf": "3.2.1",
-    "peggy": "^1.2.0",
+    "peggy": "^4.2.0",
     "picomatch": "^2.3.1",
     "pidusage": "^3.0.2",
     "pirates": "^4.0.1",
diff --git a/src/plugins/vis_types/timeseries/server/lib/vis_data/response_processors/series/math.test.js b/src/plugins/vis_types/timeseries/server/lib/vis_data/response_processors/series/math.test.js
index a74665d54d7eb..efb7240d82d69 100644
--- a/src/plugins/vis_types/timeseries/server/lib/vis_data/response_processors/series/math.test.js
+++ b/src/plugins/vis_types/timeseries/server/lib/vis_data/response_processors/series/math.test.js
@@ -253,8 +253,8 @@ describe('math(resp, panel, series)', () => {
         series
       )(await mathAgg(resp, panel, series)((results) => results))([]);
     } catch (e) {
-      expect(e.message).toEqual(
-        'Failed to parse expression. Expected "*", "+", "-", "/", "<", "=", ">", end of input, or whitespace but "(" found.'
+      expect(e.message).toMatchInlineSnapshot(
+        `"Failed to parse expression. Expected \\"=\\", [*/], [+\\\\-], [<>], end of input, or whitespace but \\"(\\" found."`
       );
     }
   });
diff --git a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/workspace_panel/__snapshots__/workspace_panel.test.tsx.snap b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/workspace_panel/__snapshots__/workspace_panel.test.tsx.snap
index 6c938d237608f..7cd63b7383b2e 100644
--- a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/workspace_panel/__snapshots__/workspace_panel.test.tsx.snap
+++ b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/workspace_panel/__snapshots__/workspace_panel.test.tsx.snap
@@ -20,7 +20,7 @@ Array [
           />
         </p>
         <p>
-          Error: Unable to parse expression: Expected "/*", "//", [ ,\\t,\\r,\\n], or function but "|" found.
+          Error: Unable to parse expression: Expected "/*", "//", [ \\t\\r\\n], or function but "|" found.
         </p>
       </React.Fragment>,
       "severity": "error",