diff --git a/conda/environments/bench_ann_cuda-118_arch-x86_64.yaml b/conda/environments/bench_ann_cuda-118_arch-x86_64.yaml
index 5a9ef5bd32..6ceeb568ef 100644
--- a/conda/environments/bench_ann_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/bench_ann_cuda-118_arch-x86_64.yaml
@@ -30,7 +30,8 @@ dependencies:
 - libcusolver=11.4.1.48
 - libcusparse-dev=11.7.5.86
 - libcusparse=11.7.5.86
-- libfaiss>=1.7.1
+- libfaiss-avx2=1.7.4
+- libfaiss=1.7.4
 - nccl>=2.9.9
 - ninja
 - nlohmann_json>=3.11.2
diff --git a/dependencies.yaml b/dependencies.yaml
index 700a6db1bf..9e208aac5f 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -181,9 +181,16 @@ dependencies:
           - nlohmann_json>=3.11.2
           - glog>=0.6.0
           - h5py>=3.8.0
-          - libfaiss>=1.7.1
+          - libfaiss=1.7.4
           - benchmark>=1.8.2
           - faiss-proc=*=cuda
+    specific:
+      - output_types: [conda, pyproject, requirements]
+        matrices:
+          - matrix:
+              arch: x86_64
+            packages:
+              - libfaiss-avx2=1.7.4
   nn_bench_python:
     common:
       - output_types: [conda]