diff --git a/.github/workflows/solver-tests.yml b/.github/workflows/solver-tests.yml
index 155dd6f783..57992fbab6 100644
--- a/.github/workflows/solver-tests.yml
+++ b/.github/workflows/solver-tests.yml
@@ -31,6 +31,7 @@ jobs:
           - package: 'CDDLib'
           - package: 'COSMO'
           - package: 'CSDP'
+          - package: 'DiffOpt'
           - package: 'DSDP'
           - package: 'EAGO'
           - package: 'ECOS'
@@ -43,6 +44,7 @@ jobs:
           - package: 'MultiObjectiveAlgorithms'
           - package: 'NLopt'
           - package: 'OSQP'
+          - package: 'ParametricOptInterface'
           - package: 'PATHSolver'
           - package: 'Pavito'
           - package: 'ProxSDP'