diff --git a/backend/python/chatterbox/install.sh b/backend/python/chatterbox/install.sh
index 5202f4403..8f607485b 100755
--- a/backend/python/chatterbox/install.sh
+++ b/backend/python/chatterbox/install.sh
@@ -15,14 +15,6 @@ fi
 if [ "x${BUILD_PROFILE}" == "xintel" ]; then
     EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
 fi
-
-# This is here because the jetson-ai-lab.io PyPI mirror's root PyPI endpoint (pypi.jetson-ai-lab.io/root/pypi/)
-# returns 503 errors when uv tries to fall back to it for packages not found in the specific subdirectory.
-# We need uv to continue falling through to the official PyPI index when it encounters these errors.
-if [ "x${BUILD_PROFILE}" == "xl4t12" ] || [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
-    EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-first-match"
-fi
-
 EXTRA_PIP_INSTALL_FLAGS+=" --no-build-isolation"
 
 installRequirements
diff --git a/backend/python/diffusers/install.sh b/backend/python/diffusers/install.sh
index f2af05388..2e437de08 100755
--- a/backend/python/diffusers/install.sh
+++ b/backend/python/diffusers/install.sh
@@ -23,11 +23,4 @@ if [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
   PY_STANDALONE_TAG="20251120"
 fi
 
-# This is here because the jetson-ai-lab.io PyPI mirror's root PyPI endpoint (pypi.jetson-ai-lab.io/root/pypi/)
-# returns 503 errors when uv tries to fall back to it for packages not found in the specific subdirectory.
-# We need uv to continue falling through to the official PyPI index when it encounters these errors.
-if [ "x${BUILD_PROFILE}" == "xl4t12" ] || [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
-    EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-first-match"
-fi
-
 installRequirements
diff --git a/backend/python/kokoro/install.sh b/backend/python/kokoro/install.sh
index a34ef188e..32befa8e6 100755
--- a/backend/python/kokoro/install.sh
+++ b/backend/python/kokoro/install.sh
@@ -16,11 +16,4 @@ if [ "x${BUILD_PROFILE}" == "xintel" ]; then
     EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
 fi
 
-# This is here because the jetson-ai-lab.io PyPI mirror's root PyPI endpoint (pypi.jetson-ai-lab.io/root/pypi/)
-# returns 503 errors when uv tries to fall back to it for packages not found in the specific subdirectory.
-# We need uv to continue falling through to the official PyPI index when it encounters these errors.
-if [ "x${BUILD_PROFILE}" == "xl4t12" ] || [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
-    EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-first-match"
-fi
-
 installRequirements
diff --git a/backend/python/neutts/install.sh b/backend/python/neutts/install.sh
index 2d4fdd734..886f931ee 100755
--- a/backend/python/neutts/install.sh
+++ b/backend/python/neutts/install.sh
@@ -16,13 +16,6 @@ if [ "x${BUILD_PROFILE}" == "xintel" ]; then
     EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
 fi
 
-# This is here because the jetson-ai-lab.io PyPI mirror's root PyPI endpoint (pypi.jetson-ai-lab.io/root/pypi/)
-# returns 503 errors when uv tries to fall back to it for packages not found in the specific subdirectory.
-# We need uv to continue falling through to the official PyPI index when it encounters these errors.
-if [ "x${BUILD_PROFILE}" == "xl4t12" ] || [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
-    EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-first-match"
-fi
-
 if [ "x${BUILD_TYPE}" == "xcublas" ] || [ "x${BUILD_TYPE}" == "xl4t" ]; then
     export CMAKE_ARGS="-DGGML_CUDA=on"
 fi
diff --git a/backend/python/vibevoice/install.sh b/backend/python/vibevoice/install.sh
index 6f539b169..89d9b715e 100755
--- a/backend/python/vibevoice/install.sh
+++ b/backend/python/vibevoice/install.sh
@@ -23,13 +23,6 @@ if [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
   PY_STANDALONE_TAG="20251120"
 fi
 
-# This is here because the jetson-ai-lab.io PyPI mirror's root PyPI endpoint (pypi.jetson-ai-lab.io/root/pypi/)
-# returns 503 errors when uv tries to fall back to it for packages not found in the specific subdirectory.
-# We need uv to continue falling through to the official PyPI index when it encounters these errors.
-if [ "x${BUILD_PROFILE}" == "xl4t12" ] || [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
-    EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-first-match"
-fi
-
 installRequirements
 
 git clone https://github.com/microsoft/VibeVoice.git