diff --git a/scripts/build_spec.py b/scripts/build_spec.py
index 88c3d46fb..e6a95e028 100644
--- a/scripts/build_spec.py
+++ b/scripts/build_spec.py
@@ -210,7 +210,7 @@ ignored_dependencies = [
 
 def dependency_order_ssz_objects(objects: Dict[str, str], custom_types: Dict[str, str]) -> None:
     """
-    Determines which SSZ Object is depenedent on which other and orders them appropriately
+    Determines which SSZ Object is dependent on which other and orders them appropriately
     """
     items = list(objects.items())
     for key, value in items:
diff --git a/test_libs/pyspec/eth2spec/test/context.py b/test_libs/pyspec/eth2spec/test/context.py
index 5a0ddb59d..5cc42c510 100644
--- a/test_libs/pyspec/eth2spec/test/context.py
+++ b/test_libs/pyspec/eth2spec/test/context.py
@@ -101,7 +101,7 @@ all_phases = ['phase0', 'phase1']
 
 def with_all_phases(fn):
     """
-    A decorator for running a test wil every phase
+    A decorator for running a test with every phase
     """
     return with_phases(all_phases)(fn)
 
diff --git a/test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py b/test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py
index 1f199e6e1..891633afe 100644
--- a/test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py
+++ b/test_libs/pyspec/eth2spec/utils/ssz/ssz_typing.py
@@ -344,7 +344,7 @@ class BaseList(list, Elements):
         return super().__iter__()
 
     def last(self):
-        # be explict about getting the last item, for the non-python readers, and negative-index safety
+        # be explicit about getting the last item, for the non-python readers, and negative-index safety
         return self[len(self) - 1]
 
 
diff --git a/test_libs/pyspec/eth2spec/utils/ssz/test_ssz_typing.py b/test_libs/pyspec/eth2spec/utils/ssz/test_ssz_typing.py
index f746a29c9..d5a53c5fa 100644
--- a/test_libs/pyspec/eth2spec/utils/ssz/test_ssz_typing.py
+++ b/test_libs/pyspec/eth2spec/utils/ssz/test_ssz_typing.py
@@ -222,7 +222,7 @@ def test_bytesn_subclass():
 
 
 def test_uint_math():
-    assert uint8(0) + uint8(uint32(16)) == uint8(16)  # allow explict casting to make invalid addition valid
+    assert uint8(0) + uint8(uint32(16)) == uint8(16)  # allow explicit casting to make invalid addition valid
 
     expect_value_error(lambda: uint8(0) - uint8(1), "no underflows allowed")
     expect_value_error(lambda: uint8(1) + uint8(255), "no overflows allowed")