diff --git a/longds/runners/DSGym/executors/container_images/longds_image/requirements.txt b/longds/runners/DSGym/executors/container_images/longds_image/requirements.txt
index 385d83e..d67be65 100644
--- a/longds/runners/DSGym/executors/container_images/longds_image/requirements.txt
+++ b/longds/runners/DSGym/executors/container_images/longds_image/requirements.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5
diff --git a/longds/runners/agent_agnostic/requirements-environment.txt b/longds/runners/agent_agnostic/requirements-environment.txt
index 064f6bf..36ad2da 100644
--- a/longds/runners/agent_agnostic/requirements-environment.txt
+++ b/longds/runners/agent_agnostic/requirements-environment.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5
diff --git a/longds/runners/claude_code/requirements-environment.txt b/longds/runners/claude_code/requirements-environment.txt
index 064f6bf..36ad2da 100644
--- a/longds/runners/claude_code/requirements-environment.txt
+++ b/longds/runners/claude_code/requirements-environment.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5
diff --git a/longds/runners/codex/requirements-environment.txt b/longds/runners/codex/requirements-environment.txt
index 064f6bf..36ad2da 100644
--- a/longds/runners/codex/requirements-environment.txt
+++ b/longds/runners/codex/requirements-environment.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5
diff --git a/longds/runners/kimi_code/requirements-environment.txt b/longds/runners/kimi_code/requirements-environment.txt
index 064f6bf..36ad2da 100644
--- a/longds/runners/kimi_code/requirements-environment.txt
+++ b/longds/runners/kimi_code/requirements-environment.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5
diff --git a/longds/runners/qoder_cli/requirements-environment.txt b/longds/runners/qoder_cli/requirements-environment.txt
index 064f6bf..36ad2da 100644
--- a/longds/runners/qoder_cli/requirements-environment.txt
+++ b/longds/runners/qoder_cli/requirements-environment.txt
@@ -86,7 +86,7 @@ nbconvert==7.17.0
 nbformat==5.10.4
 netCDF4==1.7.4
 networkx==3.6.1
-nltk==3.9.3
+nltk==3.10.3
 numba==0.65.0
 numpy==2.4.3
 nvidia-nccl-cu12==2.20.5