diff --git a/backends/arm/TARGETS b/backends/arm/TARGETS
index b00e8057df6..1865c8c593c 100644
--- a/backends/arm/TARGETS
+++ b/backends/arm/TARGETS
@@ -22,7 +22,6 @@ runtime.python_library(
         "common/debug.py",
     ],
     deps = [
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/serializer:serializer",
         "//caffe2:torch",
         "//executorch/exir:lib",
@@ -37,9 +36,7 @@ runtime.python_library(
     deps = [
         "fbsource//third-party/pypi/flatbuffers:flatbuffers",
         "fbsource//third-party/pypi/ml-dtypes:ml-dtypes",
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/serializer:serializer",
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/tosa:tosa",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/tosa:tosa",
         ":process_node",
         "//executorch/exir/backend:compile_spec_schema",
@@ -83,7 +80,6 @@ runtime.python_library(
     name = "process_node",
     srcs = ["process_node.py"],
     deps = [
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/tosa:tosa",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/tosa:tosa",
         "//executorch/backends/arm/operators:node_visitor",
         "//executorch/backends/arm/tosa:mapping",
diff --git a/backends/arm/operators/TARGETS b/backends/arm/operators/TARGETS
index 2c255b3c17a..8cfc0aa0ec7 100644
--- a/backends/arm/operators/TARGETS
+++ b/backends/arm/operators/TARGETS
@@ -20,7 +20,6 @@ runtime.python_library(
     name = "ops",
     srcs = glob(["op_*.py", "ops_*.py"]),
     deps = [
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/tosa:tosa",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/tosa:tosa",
         ":node_visitor",
         ":operator_validation_utils",
diff --git a/backends/arm/tosa/TARGETS b/backends/arm/tosa/TARGETS
index df32689bc3e..30a0fb70a4a 100644
--- a/backends/arm/tosa/TARGETS
+++ b/backends/arm/tosa/TARGETS
@@ -6,7 +6,6 @@ runtime.python_library(
         "mapping.py",
     ],
     deps = [
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/serializer:serializer",
         "//caffe2:torch",
         ":specification",
@@ -19,9 +18,7 @@ runtime.python_library(
     ],
     deps = [
         "fbsource//third-party/pypi/numpy:numpy",
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/serializer:serializer",
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/tosa:tosa",
         "fbsource//third-party/tosa_tools/v1.00/serialization_lib/python/tosa:tosa",
         "//executorch/backends/arm:constants",
         ":mapping",
@@ -44,7 +41,6 @@ runtime.python_library(
         "utils.py",
     ],
     deps = [
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         ":quant_utils",
         "//executorch/backends/arm/operators:node_visitor",
     ],
diff --git a/backends/nxp/TARGETS b/backends/nxp/TARGETS
index d56ac60242c..875f9813f43 100644
--- a/backends/nxp/TARGETS
+++ b/backends/nxp/TARGETS
@@ -50,7 +50,7 @@ runtime.python_library(
     name = "neutron_sdk",
     srcs = glob(["backend/**/*.py"]),
     deps = [
-       "fbsource//third-party/pypi/neutron_converter:neutron_converter",
+        "fbsource//third-party/pypi/neutron_converter:neutron_converter",
     ],
 )
 
@@ -68,7 +68,6 @@ runtime.python_library(
         ":quantizer",
         "fbsource//third-party/pypi/flatbuffers:flatbuffers",
         "fbsource//third-party/pypi/ml-dtypes:ml-dtypes",
-        "fbsource//third-party/tosa_tools/v0.80/serialization_lib/python/serializer:serializer",
         "//executorch/exir:lib",
         "//executorch/backends/transforms:remove_getitem_op",
         "//caffe2:torch",