diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index b24fb942..4446e693 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.3.0-dev3
+current_version = 2.3.1-dev1
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<release>[a-z]+))?
diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 7dbef4ae..66524385 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -143,7 +143,6 @@ jobs:
     - name: Install aiida-kkr
       run: |
         pip install ${{ matrix.aiida.version }} ${{ matrix.masci-tools.version }}
-        pip install git+https://github.com/PhilippRue/aiida-test-cache.git@change_aiida-core_version
         pip install .[testing]
         pip install reentry
         reentry scan
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 12c7efe1..e4001327 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -137,7 +137,6 @@ jobs:
     - name: Install aiida-kkr
       run: |
         pip install ${{ matrix.aiida.version }} ${{ matrix.masci-tools.version }}
-        pip install git+https://github.com/PhilippRue/aiida-test-cache.git@change_aiida-core_version
         pip install .[testing]
         pip install reentry
         reentry scan
diff --git a/aiida_kkr/__init__.py b/aiida_kkr/__init__.py
index c14b03ef..4026d48f 100644
--- a/aiida_kkr/__init__.py
+++ b/aiida_kkr/__init__.py
@@ -2,4 +2,4 @@
 AiiDA KKR
 """
 
-__version__ = '2.3.0-dev3'
+__version__ = '2.3.1-dev1'
diff --git a/pyproject.toml b/pyproject.toml
index 5c16cb10..bfba5829 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "aiida-kkr"
-version = "2.3.0-dev3"
+version = "2.3.1-dev1"
 description = "AiiDA plugin for the JuKKR codes"
 classifiers = [
     "License :: OSI Approved :: MIT License",
@@ -71,7 +71,8 @@ testing = [
     "pytest-mpl >= 0.10",
     "pytest-timeout >= 1.3.3",
     "pytest-regressions >= 1.0",
-    "MarkupSafe < 3.1.0"
+    "MarkupSafe < 3.1.0",
+    "aiida-test-cache"
 ]
 docs = [
     "Sphinx >= 1.8.2",