diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index c9d6c14..8738d11 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -9,8 +9,6 @@ on:
 jobs:
   checks:
     runs-on: ubuntu-latest
-    env:
-      NLTK_DISABLE_IMPORT_SECURITY: "1"
     services:
       postgres:
         image: postgres:16
diff --git a/backend/Dockerfile b/backend/Dockerfile
index eb0c852..c6f4a36 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -47,8 +47,6 @@ RUN --mount=type=cache,target=/root/.cache/uv \
 # Install pinned spaCy model in the final environment used at runtime.
 RUN python -m pip install --no-deps "${SPACY_MODEL_WHEEL_URL}"
 
-ENV NLTK_DISABLE_IMPORT_SECURITY=1
-
 # Set HuggingFace cache directory
 ENV HF_HOME=/app/hf_cache
 
diff --git a/backend/scripts/install_guardrails_from_hub.sh b/backend/scripts/install_guardrails_from_hub.sh
index fcc5486..53414d2 100755
--- a/backend/scripts/install_guardrails_from_hub.sh
+++ b/backend/scripts/install_guardrails_from_hub.sh
@@ -8,8 +8,6 @@ GUARDRAILS_HUB_API_KEY="${GUARDRAILS_HUB_API_KEY:-}"
 ENABLE_METRICS="${ENABLE_METRICS:-false}"
 ENABLE_REMOTE_INFERENCING="${ENABLE_REMOTE_INFERENCING:-true}"
 
-export NLTK_DISABLE_IMPORT_SECURITY=1
-
 BACKEND_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
 MANIFEST_FILE="${1:-$BACKEND_DIR/app/core/validators/validators.json}"