diff --git a/environment.yml b/environment.yml
index 80d5b442f6..b1ad558f88 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,7 +7,7 @@ dependencies:
   - astropy=5
   - pip
   - ctapipe=0.19.2
-  - ctaplot~=0.6.2
+  - ctaplot~=0.6.4
   - gammapy=1.1
   - h5py
   - ipython
diff --git a/setup.py b/setup.py
index f9e7a505d3..e5d3ca4928 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@ def find_scripts(script_dir, prefix):
         'bokeh~=2.0',
         'ctapipe~=0.19.2',
         'ctapipe_io_lst~=0.22.0',
-        'ctaplot~=0.6.2',
+        'ctaplot~=0.6.4',
         'eventio>=1.9.1,<2.0.0a0',  # at least 1.1.1, but not 2
         'gammapy~=1.1',
         'h5py',