diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c753deab..d50fc35f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -57,7 +57,7 @@ jobs:
 
       - name: Add solver to environment
         run: |
-          echo -e "  - glpk\n  - ipopt<3.13.3" >> envs/environment.yaml
+          echo -e "  - glpk\n  - ipopt" >> envs/environment.yaml
 
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v2