diff --git a/.cruft.json b/.cruft.json
index c93c8e8..a592dd5 100644
--- a/.cruft.json
+++ b/.cruft.json
@@ -1,6 +1,6 @@
 {
     "template": "https://github.com/escaped/cookiecutter-pypackage.git",
-    "commit": "ca40a655346dd9d411448b275aacbab0202b3113",
+    "commit": "201e2aa005db39b8b3ab854658dc5d8da0822e3a",
     "context": {
         "cookiecutter": {
             "author": "Alexander Frenzel",
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 671eb02..0020d46 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -19,17 +19,27 @@ jobs:
       - name: Update project structure
         run: |
           cruft update -y
+
+      - name: Check if there are changes
+        id: changes
+        uses: UnicornGlobal/has-changes-action@v1.0.11
+
+      - name: apply additional changes and fixes
+        if: steps.changes.outputs.changed == 1
+        run: |
           poetry lock --no-update  # add new dependencies
           poetry install
           poetry run pre-commit run -a || true  # we have to fix other issue manually
 
       - name: Get new template version
+        if: steps.changes.outputs.changed == 1
         # extract new cooiecutter template version
         run: |
           echo "TEMPLATE_COMMIT=$(cat .cruft.json | jello -r "_['commit'][:8]")" >> $GITHUB_ENV
 
       # behaviour if PR already exists: https://github.com/marketplace/actions/create-pull-request#action-behaviour
       - name: Create Pull Request
+        if: steps.changes.outputs.changed == 1
         uses: peter-evans/create-pull-request@v3
         with:
           token: ${{ secrets.AUTO_UPDATE_GITHUB_TOKEN }}
@@ -39,4 +49,3 @@ jobs:
           body: ""
           branch: chore/cookiecutter-pypackage
           delete-branch: true
-
diff --git a/poetry.lock b/poetry.lock
index 555011c..21907f1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1149,7 +1149,6 @@ better-exceptions = [
     {file = "better_exceptions-0.3.2.tar.gz", hash = "sha256:7d1afd4c1282133dc359339953ddb1f13a51dc8023bb60959ab66668b0dca0c0"},
 ]
 black = [
-    {file = "black-20.8b1-py3-none-any.whl", hash = "sha256:70b62ef1527c950db59062cda342ea224d772abdf6adc58b86a45421bab20a6b"},
     {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
 ]
 certifi = [
@@ -1712,6 +1711,8 @@ pyyaml = [
     {file = "PyYAML-5.3.1-cp37-cp37m-win_amd64.whl", hash = "sha256:73f099454b799e05e5ab51423c7bcf361c58d3206fa7b0d555426b1f4d9a3eaf"},
     {file = "PyYAML-5.3.1-cp38-cp38-win32.whl", hash = "sha256:06a0d7ba600ce0b2d2fe2e78453a470b5a6e000a985dd4a4e54e436cc36b0e97"},
     {file = "PyYAML-5.3.1-cp38-cp38-win_amd64.whl", hash = "sha256:95f71d2af0ff4227885f7a6605c37fd53d3a106fcab511b8860ecca9fcf400ee"},
+    {file = "PyYAML-5.3.1-cp39-cp39-win32.whl", hash = "sha256:ad9c67312c84def58f3c04504727ca879cb0013b2517c85a9a253f0cb6380c0a"},
+    {file = "PyYAML-5.3.1-cp39-cp39-win_amd64.whl", hash = "sha256:6034f55dab5fea9e53f436aa68fa3ace2634918e8b5994d82f3621c04ff5ed2e"},
     {file = "PyYAML-5.3.1.tar.gz", hash = "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d"},
 ]
 regex = [
@@ -1765,6 +1766,7 @@ rtree = [
     {file = "Rtree-0.9.5.tar.gz", hash = "sha256:70387692061f8b5c45b1ae258fbd9a20b2f04b04af17af49545aeffaab443270"},
 ]
 shapely = [
+    {file = "Shapely-1.7.1-1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:46da0ea527da9cf9503e66c18bab6981c5556859e518fe71578b47126e54ca93"},
     {file = "Shapely-1.7.1-cp27-cp27mu-manylinux1_x86_64.whl", hash = "sha256:4c10f317e379cc404f8fc510cd9982d5d3e7ba13a9cfd39aa251d894c6366798"},
     {file = "Shapely-1.7.1-cp35-cp35m-macosx_10_6_intel.whl", hash = "sha256:17df66e87d0fe0193910aeaa938c99f0b04f67b430edb8adae01e7be557b141b"},
     {file = "Shapely-1.7.1-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:da38ed3d65b8091447dc3717e5218cc336d20303b77b0634b261bc5c1aa2bae8"},
@@ -1782,6 +1784,10 @@ shapely = [
     {file = "Shapely-1.7.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:90a3e2ae0d6d7d50ff2370ba168fbd416a53e7d8448410758c5d6a5920646c1d"},
     {file = "Shapely-1.7.1-cp38-cp38-win32.whl", hash = "sha256:a3774516c8a83abfd1ddffb8b6ec1b0935d7fe6ea0ff5c31a18bfdae567b4eba"},
     {file = "Shapely-1.7.1-cp38-cp38-win_amd64.whl", hash = "sha256:6593026cd3f5daaea12bcc51ae5c979318070fefee210e7990cb8ac2364e79a1"},
+    {file = "Shapely-1.7.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:617bf046a6861d7c6b44d2d9cb9e2311548638e684c2cd071d8945f24a926263"},
+    {file = "Shapely-1.7.1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:b40cc7bb089ae4aa9ddba1db900b4cd1bce3925d2a4b5837b639e49de054784f"},
+    {file = "Shapely-1.7.1-cp39-cp39-win32.whl", hash = "sha256:2df5260d0f2983309776cb41bfa85c464ec07018d88c0ecfca23d40bfadae2f1"},
+    {file = "Shapely-1.7.1-cp39-cp39-win_amd64.whl", hash = "sha256:a5c3a50d823c192f32615a2a6920e8c046b09e07a58eba220407335a9cd2e8ea"},
     {file = "Shapely-1.7.1.tar.gz", hash = "sha256:1641724c1055459a7e2b8bbe47ba25bdc89554582e62aec23cb3f3ca25f9b129"},
 ]
 six = [
@@ -1812,19 +1818,28 @@ typed-ast = [
     {file = "typed_ast-1.4.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75"},
     {file = "typed_ast-1.4.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:24995c843eb0ad11a4527b026b4dde3da70e1f2d8806c99b7b4a7cf491612652"},
     {file = "typed_ast-1.4.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7"},
+    {file = "typed_ast-1.4.1-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:fcf135e17cc74dbfbc05894ebca928ffeb23d9790b3167a674921db19082401f"},
     {file = "typed_ast-1.4.1-cp36-cp36m-win32.whl", hash = "sha256:4e3e5da80ccbebfff202a67bf900d081906c358ccc3d5e3c8aea42fdfdfd51c1"},
     {file = "typed_ast-1.4.1-cp36-cp36m-win_amd64.whl", hash = "sha256:249862707802d40f7f29f6e1aad8d84b5aa9e44552d2cc17384b209f091276aa"},
     {file = "typed_ast-1.4.1-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:8ce678dbaf790dbdb3eba24056d5364fb45944f33553dd5869b7580cdbb83614"},
     {file = "typed_ast-1.4.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:c9e348e02e4d2b4a8b2eedb48210430658df6951fa484e59de33ff773fbd4b41"},
     {file = "typed_ast-1.4.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:bcd3b13b56ea479b3650b82cabd6b5343a625b0ced5429e4ccad28a8973f301b"},
+    {file = "typed_ast-1.4.1-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:f208eb7aff048f6bea9586e61af041ddf7f9ade7caed625742af423f6bae3298"},
     {file = "typed_ast-1.4.1-cp37-cp37m-win32.whl", hash = "sha256:d5d33e9e7af3b34a40dc05f498939f0ebf187f07c385fd58d591c533ad8562fe"},
     {file = "typed_ast-1.4.1-cp37-cp37m-win_amd64.whl", hash = "sha256:0666aa36131496aed8f7be0410ff974562ab7eeac11ef351def9ea6fa28f6355"},
     {file = "typed_ast-1.4.1-cp38-cp38-macosx_10_15_x86_64.whl", hash = "sha256:d205b1b46085271b4e15f670058ce182bd1199e56b317bf2ec004b6a44f911f6"},
     {file = "typed_ast-1.4.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:6daac9731f172c2a22ade6ed0c00197ee7cc1221aa84cfdf9c31defeb059a907"},
     {file = "typed_ast-1.4.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:498b0f36cc7054c1fead3d7fc59d2150f4d5c6c56ba7fb150c013fbc683a8d2d"},
+    {file = "typed_ast-1.4.1-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:7e4c9d7658aaa1fc80018593abdf8598bf91325af6af5cce4ce7c73bc45ea53d"},
     {file = "typed_ast-1.4.1-cp38-cp38-win32.whl", hash = "sha256:715ff2f2df46121071622063fc7543d9b1fd19ebfc4f5c8895af64a77a8c852c"},
     {file = "typed_ast-1.4.1-cp38-cp38-win_amd64.whl", hash = "sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4"},
     {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_15_x86_64.whl", hash = "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34"},
+    {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:92c325624e304ebf0e025d1224b77dd4e6393f18aab8d829b5b7e04afe9b7a2c"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux1_i686.whl", hash = "sha256:d648b8e3bf2fe648745c8ffcee3db3ff903d0817a01a12dd6a6ea7a8f4889072"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:fac11badff8313e23717f3dada86a15389d0708275bddf766cca67a84ead3e91"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:0d8110d78a5736e16e26213114a38ca35cb15b6515d535413b090bd50951556d"},
+    {file = "typed_ast-1.4.1-cp39-cp39-win32.whl", hash = "sha256:b52ccf7cfe4ce2a1064b18594381bccf4179c2ecf7f513134ec2f993dd4ab395"},
+    {file = "typed_ast-1.4.1-cp39-cp39-win_amd64.whl", hash = "sha256:3742b32cf1c6ef124d57f95be609c473d7ec4c14d0090e5a5e05a15269fb4d0c"},
     {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
 ]
 typing-extensions = [