diff --git a/.github/workflows/dependencies.yml b/.github/workflows/dependencies.yml
index 86dd43d6..57347d3d 100644
--- a/.github/workflows/dependencies.yml
+++ b/.github/workflows/dependencies.yml
@@ -34,7 +34,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        armadillo: ["10.4.x", "10.5.x"]
+        armadillo: ["10.5.x"]
         pybind: ["v2.6.0", "v2.6.1", "v2.6.2"]
 
     steps: