diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index a14e5aa..cac286b 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -20,7 +20,6 @@ jobs:
         CONFIG: linux_64_python3.8.____cpython
         UPLOAD_PACKAGES: 'True'
         DOCKER_IMAGE: condaforge/linux-anvil-comp7
-    maxParallel: 8
   timeoutInMinutes: 360
 
   steps:
diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index 7fc4fc6..3b6ec89 100755
--- a/.azure-pipelines/azure-pipelines-osx.yml
+++ b/.azure-pipelines/azure-pipelines-osx.yml
@@ -17,7 +17,6 @@ jobs:
       osx_64_python3.8.____cpython:
         CONFIG: osx_64_python3.8.____cpython
         UPLOAD_PACKAGES: 'True'
-    maxParallel: 8
   timeoutInMinutes: 360
 
   steps:
diff --git a/.azure-pipelines/azure-pipelines-win.yml b/.azure-pipelines/azure-pipelines-win.yml
index a4edbe6..1244454 100755
--- a/.azure-pipelines/azure-pipelines-win.yml
+++ b/.azure-pipelines/azure-pipelines-win.yml
@@ -17,7 +17,6 @@ jobs:
       win_64_python3.8.____cpython:
         CONFIG: win_64_python3.8.____cpython
         UPLOAD_PACKAGES: 'True'
-    maxParallel: 4
   timeoutInMinutes: 360
   variables:
     CONDA_BLD_PATH: D:\\bld\\
diff --git a/.ci_support/linux_64_python3.6.____cpython.yaml b/.ci_support/linux_64_python3.6.____cpython.yaml
index da0b64c..9a8afa1 100644
--- a/.ci_support/linux_64_python3.6.____cpython.yaml
+++ b/.ci_support/linux_64_python3.6.____cpython.yaml
@@ -12,13 +12,11 @@ cxx_compiler_version:
 - '7'
 docker_image:
 - condaforge/linux-anvil-comp7
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -28,3 +26,8 @@ python:
 - 3.6.* *_cpython
 target_platform:
 - linux-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/linux_64_python3.7.____cpython.yaml b/.ci_support/linux_64_python3.7.____cpython.yaml
index db83d29..bd090ca 100644
--- a/.ci_support/linux_64_python3.7.____cpython.yaml
+++ b/.ci_support/linux_64_python3.7.____cpython.yaml
@@ -12,13 +12,11 @@ cxx_compiler_version:
 - '7'
 docker_image:
 - condaforge/linux-anvil-comp7
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -28,3 +26,8 @@ python:
 - 3.7.* *_cpython
 target_platform:
 - linux-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/linux_64_python3.8.____cpython.yaml b/.ci_support/linux_64_python3.8.____cpython.yaml
index 4880160..7005312 100644
--- a/.ci_support/linux_64_python3.8.____cpython.yaml
+++ b/.ci_support/linux_64_python3.8.____cpython.yaml
@@ -12,13 +12,11 @@ cxx_compiler_version:
 - '7'
 docker_image:
 - condaforge/linux-anvil-comp7
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -28,3 +26,8 @@ python:
 - 3.8.* *_cpython
 target_platform:
 - linux-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/migrations/proj711.yaml b/.ci_support/migrations/proj711.yaml
deleted file mode 100644
index aeb974f..0000000
--- a/.ci_support/migrations/proj711.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
-__migrator:
-  build_number: 1
-  kind: version
-  migration_number: 1
-proj:
-- '7.1.1'
-migrator_ts: 1599583732
diff --git a/.ci_support/osx_64_python3.6.____cpython.yaml b/.ci_support/osx_64_python3.6.____cpython.yaml
index e7fc399..435c43d 100644
--- a/.ci_support/osx_64_python3.6.____cpython.yaml
+++ b/.ci_support/osx_64_python3.6.____cpython.yaml
@@ -12,15 +12,13 @@ cxx_compiler:
 - clangxx
 cxx_compiler_version:
 - '10'
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -30,3 +28,8 @@ python:
 - 3.6.* *_cpython
 target_platform:
 - osx-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/osx_64_python3.7.____cpython.yaml b/.ci_support/osx_64_python3.7.____cpython.yaml
index d8fc9c6..1b2183a 100644
--- a/.ci_support/osx_64_python3.7.____cpython.yaml
+++ b/.ci_support/osx_64_python3.7.____cpython.yaml
@@ -12,15 +12,13 @@ cxx_compiler:
 - clangxx
 cxx_compiler_version:
 - '10'
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -30,3 +28,8 @@ python:
 - 3.7.* *_cpython
 target_platform:
 - osx-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/osx_64_python3.8.____cpython.yaml b/.ci_support/osx_64_python3.8.____cpython.yaml
index debdddd..e2bf440 100644
--- a/.ci_support/osx_64_python3.8.____cpython.yaml
+++ b/.ci_support/osx_64_python3.8.____cpython.yaml
@@ -12,15 +12,13 @@ cxx_compiler:
 - clangxx
 cxx_compiler_version:
 - '10'
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -30,3 +28,8 @@ python:
 - 3.8.* *_cpython
 target_platform:
 - osx-64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - numpy
diff --git a/.ci_support/win_64_python3.6.____cpython.yaml b/.ci_support/win_64_python3.6.____cpython.yaml
index d1d9c91..8031cc3 100644
--- a/.ci_support/win_64_python3.6.____cpython.yaml
+++ b/.ci_support/win_64_python3.6.____cpython.yaml
@@ -6,13 +6,11 @@ channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2017
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -24,3 +22,6 @@ target_platform:
 - win-64
 vc:
 - '14'
+zip_keys:
+- - python
+  - numpy
diff --git a/.ci_support/win_64_python3.7.____cpython.yaml b/.ci_support/win_64_python3.7.____cpython.yaml
index 3ecb035..522ef19 100644
--- a/.ci_support/win_64_python3.7.____cpython.yaml
+++ b/.ci_support/win_64_python3.7.____cpython.yaml
@@ -6,13 +6,11 @@ channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2017
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -24,3 +22,6 @@ target_platform:
 - win-64
 vc:
 - '14'
+zip_keys:
+- - python
+  - numpy
diff --git a/.ci_support/win_64_python3.8.____cpython.yaml b/.ci_support/win_64_python3.8.____cpython.yaml
index 49aef4f..55fc7fb 100644
--- a/.ci_support/win_64_python3.8.____cpython.yaml
+++ b/.ci_support/win_64_python3.8.____cpython.yaml
@@ -6,13 +6,11 @@ channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2017
-gdal:
-- '3.1'
+geos:
+- 3.8.1
 numpy:
 - '1.16'
 pin_run_as_build:
-  gdal:
-    max_pin: x.x
   python:
     min_pin: x.x
     max_pin: x.x
@@ -24,3 +22,6 @@ target_platform:
 - win-64
 vc:
 - '14'
+zip_keys:
+- - python
+  - numpy
diff --git a/build-locally.py b/build-locally.py
index d92f4ed..3453cfe 100755
--- a/build-locally.py
+++ b/build-locally.py
@@ -61,7 +61,7 @@ def main(args=None):
         help="Setup debug environment using `conda debug`",
     )
     p.add_argument(
-        "--output-id", help="If running debug, specifiy the output to setup."
+        "--output-id", help="If running debug, specify the output to setup."
     )
 
     ns = p.parse_args(args=args)
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 772eabe..001be8d 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -10,7 +10,8 @@ source:
 
 build:
   skip: true  # [win and vc<14]
-  number: 3
+  error_overlinking: true
+  number: 4
 
 requirements:
   build:
@@ -22,22 +23,25 @@ requirements:
     - cython
     - numpy
     - msinttypes  # [win and vc<14]
+    # proj and geos are needed as dependencies even though not listed upstream
     - proj
-    - gdal
+    - geos
   run:
     - python
     - {{ pin_compatible('numpy') }}
-    - pillow >=1.7.8
-    - owslib >=0.8.11
     - shapely >=1.5.6
-    - scipy >=0.10
     - pyshp >=1.1.4
-    - matplotlib-base >=1.5.1
-    - pyepsg >=0.4.0
+    - six >=1.3.0
+    # proj and geos are needed as dependencies even though not listed upstream
     - proj
-    - gdal
+    - geos
 
 test:
+  requires:
+    - matplotlib-base >=1.5.1
+    - gdal >=1.10.0
+    - pillow >=1.7.8
+    - scipy >=0.10
   imports:
     - cartopy
     - cartopy.mpl.geoaxes