diff --git a/build.sbt b/build.sbt
index d79d4c20..bcded880 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,4 @@
-val avroVersion = "1.11.1"
+val avroVersion = "1.11.3"
 val catsVersion = "2.9.0"
 val disciplineScalaTestVersion = "2.2.0"
 val enumeratumVersion = "1.7.2"
diff --git a/modules/core/src/test/scala/vulcan/CodecSpec.scala b/modules/core/src/test/scala/vulcan/CodecSpec.scala
index 6fe8d607..8884b022 100644
--- a/modules/core/src/test/scala/vulcan/CodecSpec.scala
+++ b/modules/core/src/test/scala/vulcan/CodecSpec.scala
@@ -664,7 +664,7 @@ final class CodecSpec extends BaseSpec with CodecSpecHelpers {
               .swap
               .value
               .message ==
-              "java.lang.IllegalArgumentException: Invalid fixed size: -1"
+              "org.apache.avro.AvroRuntimeException: Malformed data. Length is negative: -1"
           }
         }
       }