diff --git a/.github/workflows/unittests.yaml b/.github/workflows/unittests.yaml
index aad539a..7d805b9 100644
--- a/.github/workflows/unittests.yaml
+++ b/.github/workflows/unittests.yaml
@@ -24,4 +24,6 @@ jobs:
         run: pytest --cov=lsbi tests
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/README.rst b/README.rst
index 96cabfa..903756e 100644
--- a/README.rst
+++ b/README.rst
@@ -3,7 +3,7 @@ lsbi: Linear Simulation Based Inference
 =======================================
 :lsbi: Linear Simulation Based Inference
 :Author: Will Handley & David Yallup
-:Version: 0.12.1
+:Version: 0.12.2
 :Homepage: https://github.com/handley-lab/lsbi
 :Documentation: http://lsbi.readthedocs.io/
 
diff --git a/lsbi/_version.py b/lsbi/_version.py
index def467e..76da4a9 100644
--- a/lsbi/_version.py
+++ b/lsbi/_version.py
@@ -1 +1 @@
-__version__ = "0.12.1"
+__version__ = "0.12.2"