diff --git a/requirements/requirements.in b/requirements/requirements.in
index b3c566a..92f027c 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -1,6 +1,6 @@
 autopep8
 bump2version
-cartopy==0.19.0.post1
+cartopy==0.22.0
 flake8
 matplotlib==3.5.0
 mpl-sphinx-theme
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index a24e784..16d96e2 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -16,10 +16,12 @@ beautifulsoup4==4.10.0
     # via pydata-sphinx-theme
 bump2version==1.0.1
     # via -r requirements.in
-cartopy==0.19.0.post1
+cartopy==0.22.0
     # via -r requirements.in
 certifi==2021.10.8
-    # via requests
+    # via
+    #   pyproj
+    #   requests
 cffi==1.15.0
     # via cryptography
 cfgv==3.3.1
@@ -61,7 +63,9 @@ kiwisolver==1.3.2
 markupsafe==2.1.0
     # via jinja2
 matplotlib==3.5.0
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   cartopy
 mccabe==0.6.1
     # via flake8
 mpl-sphinx-theme==3.5.0
@@ -75,6 +79,7 @@ numpy==1.22.2
     #   scipy
 packaging==21.3
     # via
+    #   cartopy
     #   matplotlib
     #   setuptools-scm
     #   sphinx
@@ -110,7 +115,9 @@ pyparsing==3.0.7
     # via
     #   matplotlib
     #   packaging
-pyshp==2.2.0
+pyproj==3.6.1
+    # via cartopy
+pyshp==2.3.1
     # via cartopy
 python-dateutil==2.8.2
     # via matplotlib