diff --git a/.github/workflows/unittests.yaml b/.github/workflows/unittests.yaml
index a02df66a..b2a52cb0 100644
--- a/.github/workflows/unittests.yaml
+++ b/.github/workflows/unittests.yaml
@@ -7,7 +7,7 @@ jobs:
 
     strategy:
       matrix:
-        python: ["3.8", "3.11"]
+        python: ["3.8", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/setup.cfg b/setup.cfg
index bce41367..29690140 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -38,7 +38,8 @@ install_requires =
     ecdsa >= 0.18;platform_system=="Windows"
     pycryptodome >= 3.19.0
     SQLAlchemy >= 2.0.20
-    numpy >= 1.26.0
+    numpy == 1.19.5;python_version<"3.9"
+    numpy >= 1.22.0;python_version>="3.9"
 
 [options.extras_require]
 dev =