diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index aa85a66..72cd41a 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -23,7 +23,8 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - '3.7'
+          # As of 2024-06-26, Poetry has started failing to install on 3.7:
+          # `TypeError: Expected maxsize to be an integer or None`
           - '3.8'
           - '3.9'
           - '3.10'
@@ -36,19 +37,6 @@ jobs:
           - '1.6.1'
           - '1.7.1'
           - '1.8.1'
-        exclude:
-          # install error: `TypeError: Expected maxsize to be an integer or None`
-          - python-version: '3.7'
-            poetry-version: '1.3.2'
-          - python-version: '3.7'
-            poetry-version: '1.5.1'
-
-          - python-version: '3.7'
-            poetry-version: '1.6.1'
-          - python-version: '3.7'
-            poetry-version: '1.7.1'
-          - python-version: '3.7'
-            poetry-version: '1.8.1'
         include:
           - python-version: '3.11'
             poetry-version: 'git+https://github.com/radoering/poetry.git@pep621-support'