diff --git a/install/mala_cpu_base_environment.yml b/install/mala_cpu_base_environment.yml
index a1b125831..1f5f61308 100644
--- a/install/mala_cpu_base_environment.yml
+++ b/install/mala_cpu_base_environment.yml
@@ -14,4 +14,4 @@ dependencies:
   - mpmath
   - tensorboard
   - scikit-spatial
-  - openpmd-api>=0.15.1
+  - openpmd-api
diff --git a/install/mala_cpu_environment.yml b/install/mala_cpu_environment.yml
index 43dad4444..8fcd3ba02 100644
--- a/install/mala_cpu_environment.yml
+++ b/install/mala_cpu_environment.yml
@@ -95,7 +95,7 @@ dependencies:
   - numpy=1.24.0
   - oauthlib=3.2.2
   - openjpeg=2.5.0
-  - openpmd-api=0.15.2=nompi_py38h766a7de_102
+  - openpmd-api=0.15.2
   - openssl=3.3.1
   - optuna=3.0.5
   - packaging=22.0