diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6d13262..2ada218 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
         include:
           # NEP29 compliance settings
           - python-version: "3.9"
-            numpy_ver: "1.21"
+            numpy_ver: "1.23"
             os: ubuntu-latest
             test_config: "NEP29"
           # Operational compliance settings
diff --git a/pyproject.toml b/pyproject.toml
index 59a3b31..d60bf56 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,6 @@ classifiers = [
   "Natural Language :: English",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3.6",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",