diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index df7df86ef90..a8a567048a3 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -55,7 +55,7 @@ jobs:
           # environment cache is persistent for one week.
           cache-environment-key: micromamba-environment-${{ steps.date.outputs.date }}
           create-args: >-
-            gmt=6.6.0
+            gmt=6.7.0
             python=3.14
             numpy
             pandas
diff --git a/.github/workflows/cache_data.yaml b/.github/workflows/cache_data.yaml
index 7035ae35797..78c4e8192f1 100644
--- a/.github/workflows/cache_data.yaml
+++ b/.github/workflows/cache_data.yaml
@@ -55,7 +55,7 @@ jobs:
           environment-name: pygmt
           create-args: >-
             python=3.14
-            gmt=6.6.0
+            gmt=6.7.0
             numpy
             pandas
             xarray
diff --git a/.github/workflows/ci_docs.yml b/.github/workflows/ci_docs.yml
index d18701d3234..e57a303e9a2 100644
--- a/.github/workflows/ci_docs.yml
+++ b/.github/workflows/ci_docs.yml
@@ -91,7 +91,7 @@ jobs:
           cache-environment-key: micromamba-environment-${{ steps.date.outputs.date }}
           create-args: >-
             python=3.14
-            gmt=6.6.0
+            gmt=6.7.0
             ghostscript=10.07.1
             numpy
             pandas
diff --git a/.github/workflows/ci_doctests.yaml b/.github/workflows/ci_doctests.yaml
index 2c0eb28d081..17d0a43e9d3 100644
--- a/.github/workflows/ci_doctests.yaml
+++ b/.github/workflows/ci_doctests.yaml
@@ -50,7 +50,7 @@ jobs:
           environment-name: pygmt
           create-args: >-
             python=3.14
-            gmt=6.6.0
+            gmt=6.7.0
             numpy
             pandas
             xarray
diff --git a/.github/workflows/ci_tests.yaml b/.github/workflows/ci_tests.yaml
index b1a9310cfe4..9a3727900ed 100644
--- a/.github/workflows/ci_tests.yaml
+++ b/.github/workflows/ci_tests.yaml
@@ -128,7 +128,7 @@ jobs:
           cache-environment-key: micromamba-environment-${{ steps.date.outputs.date }}
           create-args: >-
             python=${{ matrix.python-version }}${{ matrix.optional-packages }}
-            gmt=6.6.0
+            gmt=6.7.0
             ghostscript=10.07.1
             numpy=${{ matrix.numpy-version }}
             pandas${{ matrix.pandas-version }}
diff --git a/.github/workflows/ci_tests_legacy.yaml b/.github/workflows/ci_tests_legacy.yaml
index efece62e119..b3c0cb25250 100644
--- a/.github/workflows/ci_tests_legacy.yaml
+++ b/.github/workflows/ci_tests_legacy.yaml
@@ -37,7 +37,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-22.04, ubuntu-22.04-arm, macos-14, windows-2022]
-        gmt_version: ['6.5']
+        gmt_version: ['6.5', '6.6']
     timeout-minutes: 30
     defaults:
       run:
diff --git a/ci/requirements/docs.yml b/ci/requirements/docs.yml
index f0ccd9e7644..9d7a8bf7a5a 100644
--- a/ci/requirements/docs.yml
+++ b/ci/requirements/docs.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
     # Required dependencies
     - python=3.14
-    - gmt=6.6.0
+    - gmt=6.7.0
     - ghostscript=10.07.1
     - numpy
     - pandas
diff --git a/doc/conf.py b/doc/conf.py
index c391f7d1654..47b3130c3a6 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -88,8 +88,8 @@
 
 # Options for extlinks.
 extlinks = {
-    "gmt-docs": ("https://docs.generic-mapping-tools.org/6.6/%s", None),
-    "gmt-term": ("https://docs.generic-mapping-tools.org/6.6/gmt.conf#term-%s", "%s"),
+    "gmt-docs": ("https://docs.generic-mapping-tools.org/6.7/%s", None),
+    "gmt-term": ("https://docs.generic-mapping-tools.org/6.7/gmt.conf#term-%s", "%s"),
     "gmt-datasets": ("https://www.generic-mapping-tools.org/remote-datasets/%s", None),
 }
 
diff --git a/doc/install.md b/doc/install.md
index 9357ba055ff..b687fb0b9d1 100644
--- a/doc/install.md
+++ b/doc/install.md
@@ -240,4 +240,4 @@ please check your GMT and Ghostscript versions (you can run `pygmt.show_versions
 We recommend:
 
 - Ghostscript 9.53-9.56 for GMT 6.4.0 (or below)
-- Ghostscript 10.03-10.07 for GMT 6.5.0-6.6.0
+- Ghostscript 10.03-10.07 for GMT 6.5.0-6.7.0
diff --git a/environment.yml b/environment.yml
index 3552281a62f..0d72ccc85b0 100644
--- a/environment.yml
+++ b/environment.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
     - python>=3.12
     # Required dependencies
-    - gmt=6.6.0
+    - gmt=6.7.0
     - ghostscript=10.07.1
     - numpy>=2.1
     - pandas>=2.3