diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe51c3134..058d03339 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -120,6 +120,8 @@ jobs:
       # nalgebra
       - name: argmin-math (nalgebra_latest)
         run: cargo test -p argmin-math --no-default-features --features "nalgebra_latest"
+      - name: argmin-math (nalgebra_v0_33)
+        run: cargo test -p argmin-math --no-default-features --features "nalgebra_v0_33"
       - name: argmin-math (nalgebra_v0_32)
         run: cargo test -p argmin-math --no-default-features --features "nalgebra_v0_32"
       - name: argmin-math (nalgebra_v0_31)