diff --git a/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/DeflateManagedStream.cs b/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/DeflateManagedStream.cs
index ec71718a511d3d..ca31e978b332f0 100644
--- a/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/DeflateManagedStream.cs
+++ b/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/DeflateManagedStream.cs
@@ -310,16 +310,8 @@ protected override void Dispose(bool disposing)
                 finally
                 {
                     _stream = null!;
-
-                    try
-                    {
-                        _inflater?.Dispose();
-                    }
-                    finally
-                    {
-                        _inflater = null!;
-                        base.Dispose(disposing);
-                    }
+                    _inflater = null!;
+                    base.Dispose(disposing);
                 }
             }
         }
diff --git a/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/InflaterManaged.cs b/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/InflaterManaged.cs
index a127d93bd1d44b..7222011895309e 100644
--- a/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/InflaterManaged.cs
+++ b/src/libraries/System.IO.Compression/src/System/IO/Compression/DeflateManaged/InflaterManaged.cs
@@ -689,7 +689,5 @@ private bool DecodeDynamicBlockHeader()
             _state = InflaterState.DecodeTop;
             return true;
         }
-
-        public void Dispose() { }
     }
 }