diff --git a/README.md b/README.md
index eb6d70e..a3772ba 100644
--- a/README.md
+++ b/README.md
@@ -336,7 +336,7 @@ Even more queries can be found [here](https://colab.research.google.com/github/R
 
 # Latest updates
 
-## Version 2.1.4
+## Version 2.1.5
 - Extend data frame detection to the presence of JSON nulls.
 - Many improvements supporting built-in function and improved XML/XQuery 3.1 support.
 
diff --git a/pyproject.toml b/pyproject.toml
index 0a75d09..86b07da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "jsoniq"
-version = "2.1.4"
+version = "2.1.5"
 description = "Python edition of RumbleDB, a JSONiq engine"
 requires-python = ">=3.11"
 dependencies = [
diff --git a/src/jsoniq/jars/rumbledb-2.1.4.jar b/src/jsoniq/jars/rumbledb-2.1.4.jar
deleted file mode 100644
index f43d285..0000000
--- a/src/jsoniq/jars/rumbledb-2.1.4.jar
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6a08e3c651a6d3ed67f9595c7e320f68670e1e3bce849ab1301c4e1ef8b6f1d9
-size 79677143
diff --git a/src/jsoniq/jars/rumbledb-2.1.5.jar b/src/jsoniq/jars/rumbledb-2.1.5.jar
new file mode 100644
index 0000000..8d206c1
--- /dev/null
+++ b/src/jsoniq/jars/rumbledb-2.1.5.jar
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9ba4907aea95f8fb6ab5e9dcab3087b46dc8e9c25b90c313cc0bb0ca47622f2b
+size 79917176
diff --git a/src/jsoniq/session.py b/src/jsoniq/session.py
index b48a465..e04c158 100644
--- a/src/jsoniq/session.py
+++ b/src/jsoniq/session.py
@@ -7,7 +7,7 @@
 import pandas as pd
 from importlib.resources import files, as_file
 
-with as_file(files("jsoniq.jars").joinpath("rumbledb-2.1.4.jar")) as jar_path:
+with as_file(files("jsoniq.jars").joinpath("rumbledb-2.1.5.jar")) as jar_path:
     if (os.name == 'nt'):
         jar_path_str = str(jar_path)
     else: