diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 659a2b911fb..b043243c5c3 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -42,7 +42,7 @@ dependencies:
 - numpy>=1.23,<2.0a0
 - numpydoc
 - nvcc_linux-64=11.8
-- openmpi
+- openmpi<5.0.3
 - packaging>=21
 - pandas
 - pre-commit
diff --git a/conda/environments/all_cuda-122_arch-x86_64.yaml b/conda/environments/all_cuda-122_arch-x86_64.yaml
index 377e4151f9b..4a114e73876 100644
--- a/conda/environments/all_cuda-122_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-122_arch-x86_64.yaml
@@ -47,7 +47,7 @@ dependencies:
 - numba>=0.57
 - numpy>=1.23,<2.0a0
 - numpydoc
-- openmpi
+- openmpi<5.0.3
 - packaging>=21
 - pandas
 - pre-commit
diff --git a/conda/recipes/libcugraph/meta.yaml b/conda/recipes/libcugraph/meta.yaml
index a4bb361aa6b..cbd97604cff 100644
--- a/conda/recipes/libcugraph/meta.yaml
+++ b/conda/recipes/libcugraph/meta.yaml
@@ -42,7 +42,7 @@ requirements:
     - {{ compiler('cxx') }}
     - cmake {{ cmake_version }}
     - ninja
-    - openmpi # Required for building cpp-mgtests (multi-GPU tests)
+    - openmpi<5.0.3 # Required for building cpp-mgtests (multi-GPU tests)
     - {{ stdlib("c") }}
   host:
     {% if cuda_major == "11" %}
diff --git a/dependencies.yaml b/dependencies.yaml
index 19634420520..3c1320f12e4 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -364,7 +364,7 @@ dependencies:
           - libraft-headers==24.6.*
           - libraft==24.6.*
           - librmm==24.6.*
-          - openmpi # Required for building cpp-mgtests (multi-GPU tests)
+          - openmpi<5.0.3 # Required for building cpp-mgtests (multi-GPU tests)
     specific:
       - output_types: [conda]
         matrices: