diff --git a/.github/workflows/ci_tests_legacy.yaml b/.github/workflows/ci_tests_legacy.yaml
index d38e3acde7e..94cb15bef51 100644
--- a/.github/workflows/ci_tests_legacy.yaml
+++ b/.github/workflows/ci_tests_legacy.yaml
@@ -61,6 +61,7 @@ jobs:
           create-args: >-
             python=3.10
             gmt=${{ matrix.gmt_version }}
+            ghostscript<10
             numpy
             pandas<2
             xarray