diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
index 0c688813c8..91477dc9fa 100644
--- a/release-notes/VERSION-2.x
+++ b/release-notes/VERSION-2.x
@@ -55,6 +55,8 @@ JSON library.
   padding character
  (reported by @Vity01)
 #967: Address performance issue with `BigDecimalParser`
+#990: Backport removal of BigDecimal to BigInt conversion (#987)
+ (contributed by @pjfanning)
 
 2.14.2 (28-Jan-2023)
 
diff --git a/src/test/java/com/fasterxml/jackson/core/io/TestNumberInput.java b/src/test/java/com/fasterxml/jackson/core/io/TestNumberInput.java
index f9242e53bb..3884e7ee06 100644
--- a/src/test/java/com/fasterxml/jackson/core/io/TestNumberInput.java
+++ b/src/test/java/com/fasterxml/jackson/core/io/TestNumberInput.java
@@ -62,5 +62,15 @@ public void testParseBigIntegerFailsWithENotation()
             // expected
         }
     }
+
+    public void testParseBigIntegerFailsWithENotation()
+    {
+        try {
+            NumberInput.parseBigInteger("1e10");
+            fail("expected NumberFormatException");
+        } catch (NumberFormatException nfe) {
+            // expected
+        }
+    }
 }