diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index b8d73a01f96..dffd19c111b 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -30,6 +30,7 @@ dependencies:
 - dlpack>=0.8,<1.0
 - doxygen=1.9.1
 - fastavro>=0.22.9
+- flatbuffers
 - fmt>=10.1.1,<11
 - fsspec>=0.6.0
 - gcc_linux-64=11.*
diff --git a/conda/environments/all_cuda-125_arch-x86_64.yaml b/conda/environments/all_cuda-125_arch-x86_64.yaml
index 3f5fae49cbb..6236c22720a 100644
--- a/conda/environments/all_cuda-125_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-125_arch-x86_64.yaml
@@ -31,6 +31,7 @@ dependencies:
 - dlpack>=0.8,<1.0
 - doxygen=1.9.1
 - fastavro>=0.22.9
+- flatbuffers
 - fmt>=10.1.1,<11
 - fsspec>=0.6.0
 - gcc_linux-64=11.*
diff --git a/dependencies.yaml b/dependencies.yaml
index 48433d8e5c1..8dd30b31caa 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -287,6 +287,7 @@ dependencies:
       - output_types: conda
         packages:
           - fmt>=10.1.1,<11
+          - flatbuffers
           - librmm==24.8.*,>=0.0.0a0
           - libkvikio==24.8.*,>=0.0.0a0
           - librdkafka>=1.9.0,<1.10.0a0