diff --git a/lib/upload-sarif-action.js b/lib/upload-sarif-action.js
index 7885adcf4..1470a5824 100644
--- a/lib/upload-sarif-action.js
+++ b/lib/upload-sarif-action.js
@@ -88590,7 +88590,7 @@ async function asyncSome(array, predicate) {
   const results = await Promise.all(array.map(predicate));
   return results.some((result) => result);
 }
-function entriesTyped(object) {
+function unsafeEntriesInvariant(object) {
   return Object.entries(object);
 }
 
@@ -93485,7 +93485,9 @@ async function uploadSarif(logger, features, checkoutPath, sarifPath, category)
     sarifPath
   );
   const uploadResults = {};
-  for (const [analysisKind, sarifFiles] of entriesTyped(sarifGroups)) {
+  for (const [analysisKind, sarifFiles] of unsafeEntriesInvariant(
+    sarifGroups
+  )) {
     const analysisConfig = getAnalysisConfig(analysisKind);
     uploadResults[analysisKind] = await uploadSpecifiedFiles(
       sarifFiles,
diff --git a/src/upload-sarif.ts b/src/upload-sarif.ts
index f16c7fb21..34b912489 100644
--- a/src/upload-sarif.ts
+++ b/src/upload-sarif.ts
@@ -2,7 +2,7 @@ import * as analyses from "./analyses";
 import { FeatureEnablement } from "./feature-flags";
 import { Logger } from "./logging";
 import * as upload_lib from "./upload-lib";
-import { entriesTyped } from "./util";
+import { unsafeEntriesInvariant } from "./util";
 
 // Maps analysis kinds to SARIF IDs.
 export type UploadSarifResults = Partial<
@@ -33,7 +33,9 @@ export async function uploadSarif(
   );
 
   const uploadResults: UploadSarifResults = {};
-  for (const [analysisKind, sarifFiles] of entriesTyped(sarifGroups)) {
+  for (const [analysisKind, sarifFiles] of unsafeEntriesInvariant(
+    sarifGroups,
+  )) {
     const analysisConfig = analyses.getAnalysisConfig(analysisKind);
     uploadResults[analysisKind] = await upload_lib.uploadSpecifiedFiles(
       sarifFiles,
diff --git a/src/util.ts b/src/util.ts
index 94475ce62..1fb193798 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1288,16 +1288,26 @@ export function isDefined<T>(value: T | null | undefined): value is T {
   return value !== undefined && value !== null;
 }
 
-/** Like `Object.keys`, but infers the correct key type. */
-export function keysTyped<T extends Record<string, any>>(
+/** Like `Object.keys`, but typed so that the elements of the resulting array have the
+ * same type as the keys of the input object. Note that this may not be sound if the input
+ * object has been cast to `T` from a subtype of `T` and contains additional keys that
+ * are not represented by `keyof T`.
+ */
+export function unsafeKeysInvariant<T extends Record<string, any>>(
   object: T,
 ): Array<keyof T> {
   return Object.keys(object) as Array<keyof T>;
 }
 
-/** Like `Object.entries`, but infers the correct key type. */
-export function entriesTyped<T extends Record<string, any>>(
+/** Like `Object.entries`, but typed so that the key elements of the result have the
+ * same type as the keys of the input object. Note that this may not be sound if the input
+ * object has been cast to `T` from a subtype of `T` and contains additional keys that
+ * are not represented by `keyof T`.
+ */
+export function unsafeEntriesInvariant<T extends Record<string, any>>(
   object: T,
-): Array<[keyof T, NonNullable<T[keyof T]>]> {
-  return Object.entries(object) as Array<[keyof T, NonNullable<T[keyof T]>]>;
+): Array<[keyof T, Exclude<T[keyof T], undefined>]> {
+  return Object.entries(object) as Array<
+    [keyof T, Exclude<T[keyof T], undefined>]
+  >;
 }