diff --git a/release-notes/CREDITS-2.x b/release-notes/CREDITS-2.x
index 9e90a58c82..88f751c4ba 100644
--- a/release-notes/CREDITS-2.x
+++ b/release-notes/CREDITS-2.x
@@ -372,3 +372,8 @@ Dai Mikurube (dmikurube@github)
   * Contributed #1111: Call the right `filterFinishArray()`/`filterFinishObject()`
    from `FilteringParserDelegate`
   (2.15.3)
+
+Simon Baslé (simonbasle@github)
+  * Reported #1146: `JsonParserDelegate` missing overrides for `canParseAsync()`,
+    `getNonBlockingInputFeeder()`
+  (2.15.4)
diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
index c313b85f1f..ba0c03df31 100644
--- a/release-notes/VERSION-2.x
+++ b/release-notes/VERSION-2.x
@@ -14,6 +14,12 @@ a pure JSON library.
 === Releases ===
 ------------------------------------------------------------------------
 
+2.15.4 (not yet released)
+
+#1146: `JsonParserDelegate` missing overrides for `canParseAsync()`,
+  `getNonBlockingInputFeeder()`
+  (reported by Simon B)
+
 2.15.3 (12-Oct-2023)
 
 #1111: Call the right `filterFinishArray()`/`filterFinishObject()`
diff --git a/src/main/java/com/fasterxml/jackson/core/util/JsonParserDelegate.java b/src/main/java/com/fasterxml/jackson/core/util/JsonParserDelegate.java
index 2ea888bb1d..6b98df449c 100644
--- a/src/main/java/com/fasterxml/jackson/core/util/JsonParserDelegate.java
+++ b/src/main/java/com/fasterxml/jackson/core/util/JsonParserDelegate.java
@@ -7,6 +7,7 @@
 import java.math.BigInteger;
 
 import com.fasterxml.jackson.core.*;
+import com.fasterxml.jackson.core.async.NonBlockingInputFeeder;
 
 /**
  * Helper class that implements
@@ -92,9 +93,25 @@ public StreamReadConstraints streamReadConstraints() {
     /**********************************************************************
      */
 
-    @Override public boolean requiresCustomCodec() { return delegate.requiresCustomCodec(); }
+    @Override
+    public boolean canParseAsync() {
+        return delegate.canParseAsync();
+    }
+
+    @Override
+    public NonBlockingInputFeeder getNonBlockingInputFeeder() {
+        return delegate.getNonBlockingInputFeeder();
+    }
 
-    @Override public JacksonFeatureSet<StreamReadCapability> getReadCapabilities() { return delegate.getReadCapabilities(); }
+    @Override
+    public JacksonFeatureSet<StreamReadCapability> getReadCapabilities() {
+        return delegate.getReadCapabilities();
+    }
+
+    @Override
+    public boolean requiresCustomCodec() {
+        return delegate.requiresCustomCodec();
+    }
 
     /*
     /**********************************************************************