diff --git a/.github/workflows/ci_docs.yml b/.github/workflows/ci_docs.yml
index d0b9cbfff0d..7b4e078dd92 100644
--- a/.github/workflows/ci_docs.yml
+++ b/.github/workflows/ci_docs.yml
@@ -92,7 +92,7 @@ jobs:
           create-args: >-
             python=3.13
             gmt=6.5.0
-            ghostscript=10.04.0
+            ghostscript=10.06.0
             numpy
             pandas
             xarray
diff --git a/.github/workflows/ci_tests.yaml b/.github/workflows/ci_tests.yaml
index 0ffc814dbe2..739f4c57e52 100644
--- a/.github/workflows/ci_tests.yaml
+++ b/.github/workflows/ci_tests.yaml
@@ -125,7 +125,7 @@ jobs:
           create-args: >-
             python=${{ matrix.python-version }}${{ matrix.optional-packages }}
             gmt=6.5.0
-            ghostscript=10.04.0
+            ghostscript=10.06.0
             numpy=${{ matrix.numpy-version }}
             pandas${{ matrix.pandas-version }}
             xarray${{ matrix.xarray-version }}
diff --git a/.github/workflows/ci_tests_dev.yaml b/.github/workflows/ci_tests_dev.yaml
index bd6da4fcaac..c9dc74ae1b5 100644
--- a/.github/workflows/ci_tests_dev.yaml
+++ b/.github/workflows/ci_tests_dev.yaml
@@ -73,7 +73,7 @@ jobs:
             ninja
             curl
             fftw
-            ghostscript=10.04.0
+            ghostscript=10.06.0
             glib
             hdf5
             libblas
diff --git a/ci/requirements/docs.yml b/ci/requirements/docs.yml
index efde2e0f620..a745bd99215 100644
--- a/ci/requirements/docs.yml
+++ b/ci/requirements/docs.yml
@@ -6,7 +6,7 @@ dependencies:
     # Required dependencies
     - python=3.13
     - gmt=6.5.0
-    - ghostscript=10.04.0
+    - ghostscript=10.06.0
     - numpy
     - pandas
     - xarray
diff --git a/environment.yml b/environment.yml
index 9194eaeb035..f5539983e08 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ dependencies:
     - python>=3.11
     # Required dependencies
     - gmt=6.5.0
-    - ghostscript=10.04.0
+    - ghostscript=10.06.0
     - numpy>=1.26
     - pandas>=2.2
     - xarray>=2023.10
diff --git a/pygmt/tests/baseline/test_contour_interval.png.dvc b/pygmt/tests/baseline/test_contour_interval.png.dvc
index 32b57f89111..28a723b56ae 100644
--- a/pygmt/tests/baseline/test_contour_interval.png.dvc
+++ b/pygmt/tests/baseline/test_contour_interval.png.dvc
@@ -1,6 +1,5 @@
 outs:
-- md5: 44d70a0b17bc7c7939462184bf06e4da
-  size: 50998
-  isexec: true
+- md5: d4f3cfbe632135ba468ce0bf83d5f2bd
+  size: 50461
   hash: md5
   path: test_contour_interval.png
diff --git a/pygmt/tests/baseline/test_contour_matrix.png.dvc b/pygmt/tests/baseline/test_contour_matrix.png.dvc
index f693c0b7c3d..5a34c3399d3 100644
--- a/pygmt/tests/baseline/test_contour_matrix.png.dvc
+++ b/pygmt/tests/baseline/test_contour_matrix.png.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: e147503fcaacb1686211653be7eb7709
-  size: 74897
+- md5: bc881c2baecfccb21c801028ef2f7ba0
+  size: 75120
   path: test_contour_matrix.png
   hash: md5
diff --git a/pygmt/tests/baseline/test_contour_multiple_levels.png.dvc b/pygmt/tests/baseline/test_contour_multiple_levels.png.dvc
index 1e5012d7460..dee42c9b041 100644
--- a/pygmt/tests/baseline/test_contour_multiple_levels.png.dvc
+++ b/pygmt/tests/baseline/test_contour_multiple_levels.png.dvc
@@ -1,6 +1,5 @@
 outs:
-- md5: 7bef85a616c46b9f05f4dbed07bd703d
-  size: 29247
-  isexec: true
+- md5: 1f8a24696910f3cc433fd8e61caf6aa2
+  size: 29184
   hash: md5
   path: test_contour_multiple_levels.png
diff --git a/pygmt/tests/baseline/test_contour_one_level.png.dvc b/pygmt/tests/baseline/test_contour_one_level.png.dvc
index 02234514e0c..a22522a3151 100644
--- a/pygmt/tests/baseline/test_contour_one_level.png.dvc
+++ b/pygmt/tests/baseline/test_contour_one_level.png.dvc
@@ -1,6 +1,5 @@
 outs:
-- md5: 8c1ed221788e3af76279a7765640ea43
-  size: 28882
-  isexec: true
+- md5: 04234f57de3bbe994798947cac6c479c
+  size: 28963
   hash: md5
   path: test_contour_one_level.png
diff --git a/pygmt/tests/baseline/test_contour_vec.png.dvc b/pygmt/tests/baseline/test_contour_vec.png.dvc
index 80d7509e648..8a048de2d48 100644
--- a/pygmt/tests/baseline/test_contour_vec.png.dvc
+++ b/pygmt/tests/baseline/test_contour_vec.png.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 017a19fea9fda195fae9deeb329f761a
-  size: 82368
+- md5: 3e4819ddedc2b6452186844a1a927cd0
+  size: 82042
   path: test_contour_vec.png
   hash: md5
diff --git a/pygmt/tests/baseline/test_text_transparency.png.dvc b/pygmt/tests/baseline/test_text_transparency.png.dvc
index a1fcb1005ee..afe62a0983b 100644
--- a/pygmt/tests/baseline/test_text_transparency.png.dvc
+++ b/pygmt/tests/baseline/test_text_transparency.png.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 3e44dbdab2c386fd361481438fa10d58
-  size: 18174
+- md5: e1885c2a16e268ac5c06e2a959668c88
+  size: 18149
   path: test_text_transparency.png
   hash: md5
diff --git a/pygmt/tests/baseline/test_text_varying_transparency.png.dvc b/pygmt/tests/baseline/test_text_varying_transparency.png.dvc
index b49eb4fb3a9..f64ab023588 100644
--- a/pygmt/tests/baseline/test_text_varying_transparency.png.dvc
+++ b/pygmt/tests/baseline/test_text_varying_transparency.png.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: f16009816a1a007a93aef6cfc21f5dee
-  size: 18382
+- md5: 39e602f34ad20541668b712351b29375
+  size: 18351
   path: test_text_varying_transparency.png
   hash: md5