diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 18cca40c320..e050586a6ea 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -33,7 +33,7 @@ dependencies:
 - libraft==24.10.*,>=0.0.0a0
 - librmm==24.10.*,>=0.0.0a0
 - nbsphinx
-- nccl>=2.9.9
+- nccl>=2.18.1.1
 - networkx>=2.5.1
 - networkx>=3.0
 - ninja
diff --git a/conda/environments/all_cuda-125_arch-x86_64.yaml b/conda/environments/all_cuda-125_arch-x86_64.yaml
index ef20371e0f5..12a5936bc1d 100644
--- a/conda/environments/all_cuda-125_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-125_arch-x86_64.yaml
@@ -39,7 +39,7 @@ dependencies:
 - libraft==24.10.*,>=0.0.0a0
 - librmm==24.10.*,>=0.0.0a0
 - nbsphinx
-- nccl>=2.9.9
+- nccl>=2.18.1.1
 - networkx>=2.5.1
 - networkx>=3.0
 - ninja
diff --git a/conda/recipes/libcugraph/conda_build_config.yaml b/conda/recipes/libcugraph/conda_build_config.yaml
index 26aa428d7f5..6b50d0aad23 100644
--- a/conda/recipes/libcugraph/conda_build_config.yaml
+++ b/conda/recipes/libcugraph/conda_build_config.yaml
@@ -17,7 +17,7 @@ doxygen_version:
   - ">=1.8.11"
 
 nccl_version:
-  - ">=2.9.9"
+  - ">=2.18.1.1"
 
 c_stdlib:
   - sysroot
diff --git a/cpp/include/cugraph/mtmg/instance_manager.hpp b/cpp/include/cugraph/mtmg/instance_manager.hpp
index a2111804997..759635b4a34 100644
--- a/cpp/include/cugraph/mtmg/instance_manager.hpp
+++ b/cpp/include/cugraph/mtmg/instance_manager.hpp
@@ -20,6 +20,8 @@
 
 #include <raft/comms/std_comms.hpp>
 
+#include <nccl.h>
+
 #include <vector>
 
 namespace cugraph {
diff --git a/cpp/include/cugraph/mtmg/resource_manager.hpp b/cpp/include/cugraph/mtmg/resource_manager.hpp
index a9e4b81f894..e9d25c4576b 100644
--- a/cpp/include/cugraph/mtmg/resource_manager.hpp
+++ b/cpp/include/cugraph/mtmg/resource_manager.hpp
@@ -27,6 +27,8 @@
 #include <rmm/mr/device/owning_wrapper.hpp>
 #include <rmm/mr/device/pool_memory_resource.hpp>
 
+#include <nccl.h>
+
 #include <execution>
 
 namespace cugraph {
diff --git a/cpp/tests/mtmg/multi_node_threaded_test.cu b/cpp/tests/mtmg/multi_node_threaded_test.cu
index 06ccd4a7fa1..374c432aac5 100644
--- a/cpp/tests/mtmg/multi_node_threaded_test.cu
+++ b/cpp/tests/mtmg/multi_node_threaded_test.cu
@@ -39,6 +39,7 @@
 #include <thrust/unique.h>
 
 #include <gtest/gtest.h>
+#include <nccl.h>
 
 #include <filesystem>
 #include <fstream>
diff --git a/dependencies.yaml b/dependencies.yaml
index 2c8335868ba..8d37ec55001 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -530,7 +530,7 @@ dependencies:
           - aiohttp
           - fsspec>=0.6.0
           - requests
-          - nccl>=2.9.9
+          - nccl>=2.18.1.1
           - ucx-proc=*=gpu
           - &ucx_py_unsuffixed ucx-py==0.40.*,>=0.0.0a0
       - output_types: pyproject