diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index e8e79ac0..503723d1 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -155,7 +155,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           python -m pip install tomli
-          python -m pip install $(./bin/min_dependencies.py)
+          eval "python -m pip install $(./bin/min_dependencies.py)"
           python -m pip install -e ".[test]"
 
       - name: Test with pytest
diff --git a/README.rst b/README.rst
index 4b006f4a..6d05d9a2 100644
--- a/README.rst
+++ b/README.rst
@@ -2,7 +2,7 @@
 anesthetic: nested sampling post-processing
 ===========================================
 :Authors: Will Handley and Lukas Hergt
-:Version: 2.3.2
+:Version: 2.3.3
 :Homepage: https://github.com/handley-lab/anesthetic
 :Documentation: http://anesthetic.readthedocs.io/
 
diff --git a/anesthetic/_version.py b/anesthetic/_version.py
index 96deb04f..8a242cd3 100644
--- a/anesthetic/_version.py
+++ b/anesthetic/_version.py
@@ -1 +1 @@
-__version__ = '2.3.2'
+__version__ = '2.3.3'
diff --git a/bin/min_dependencies.py b/bin/min_dependencies.py
index 850ed647..e0b26723 100755
--- a/bin/min_dependencies.py
+++ b/bin/min_dependencies.py
@@ -7,5 +7,6 @@
 deps = pyproject["project"]["dependencies"]
 deps = [dep.replace(">=", "==") for dep in deps]
 deps = [dep.replace("~=", "==") for dep in deps]
+deps = [f'"{dep}"' for dep in deps]
 
 print(' '.join(deps))
diff --git a/pyproject.toml b/pyproject.toml
index bae21d34..c41930d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dependencies = [
     "scipy",
     "numpy",
     "pandas~=2.0.0",
-    "matplotlib>=3.6.1",
+    "matplotlib>=3.6.1,<3.8.0",
 ]
 classifiers = [
     "Programming Language :: Python :: 3",