diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index ef632a13..cd613184 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -45,6 +45,12 @@ jobs:
       - name: Test with pytest
         run: poetry run pytest -v -rs tests --runslow --cov=./ --cov-report=xml
 
+      - name: Test with pytest (runtime type checking disabled)
+        if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.7'
+        run: poetry run pytest -v -rs tests --runslow
+        env:
+          STELLAR_SDK_RUNTIME_TYPE_CHECKING: 0
+
       - name: Upload coverage to Codecov
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.7'
         uses: codecov/codecov-action@v1
diff --git a/stellar_sdk/type_checked.py b/stellar_sdk/type_checked.py
index d101ce90..1ac17e1f 100644
--- a/stellar_sdk/type_checked.py
+++ b/stellar_sdk/type_checked.py
@@ -4,9 +4,9 @@
 from typeguard import T_CallableOrType
 from typeguard import typechecked as _typechecked
 
-_STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG: str = "STELLAR_SDK_ENFORCE_TYPE_CHECK"
-_STELLAR_SDK_ENFORCE_TYPE_CHECK: bool = os.getenv(
-    _STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG, "False"
+_STELLAR_SDK_RUNTIME_TYPE_CHECKING_FLAG: str = "STELLAR_SDK_RUNTIME_TYPE_CHECKING"
+_STELLAR_SDK_RUNTIME_TYPE_CHECKING: bool = os.getenv(
+    _STELLAR_SDK_RUNTIME_TYPE_CHECKING_FLAG, "True"
 ).lower() in ("true", "1", "t")
 
 
@@ -23,4 +23,7 @@ def type_checked(func: T_CallableOrType) -> T_CallableOrType:
 def type_checked(
     func=None,
 ):
-    return _typechecked(func=func, always=_STELLAR_SDK_ENFORCE_TYPE_CHECK)
+    if _STELLAR_SDK_RUNTIME_TYPE_CHECKING:
+        return _typechecked(func=func)
+    else:
+        return func
diff --git a/tests/operation/test_operation.py b/tests/operation/test_operation.py
index 325af557..f0cdde7b 100644
--- a/tests/operation/test_operation.py
+++ b/tests/operation/test_operation.py
@@ -1,6 +1,7 @@
 import pytest
 
 from stellar_sdk import Operation
+from stellar_sdk.type_checked import _STELLAR_SDK_RUNTIME_TYPE_CHECKING
 
 
 class TestOperation:
@@ -19,10 +20,14 @@ def test_to_xdr_amount(self, origin_amount, expect_value):
     @pytest.mark.parametrize(
         "origin_amount, exception, reason",
         [
-            (
+            pytest.param(
                 10,
                 TypeError,
                 'type of argument "value" must be one of \\(str, decimal.Decimal\\); got int instead',
+                marks=pytest.mark.skipif(
+                    not _STELLAR_SDK_RUNTIME_TYPE_CHECKING,
+                    reason="runtime_type_checking_disabled",
+                ),
             ),
             (
                 "-0.1",
diff --git a/tests/sep/test_stellar_uri.py b/tests/sep/test_stellar_uri.py
index 270113a7..ec159027 100644
--- a/tests/sep/test_stellar_uri.py
+++ b/tests/sep/test_stellar_uri.py
@@ -10,6 +10,7 @@
     TransactionStellarUri,
 )
 from stellar_sdk.transaction_envelope import TransactionEnvelope
+from stellar_sdk.type_checked import _STELLAR_SDK_RUNTIME_TYPE_CHECKING
 
 
 class TestStellarTransactionStellarUri:
@@ -481,6 +482,9 @@ def test_message_too_long_raise(self):
                 message=message,
             )
 
+    @pytest.mark.skipif(
+        not _STELLAR_SDK_RUNTIME_TYPE_CHECKING, reason="runtime_type_checking_disabled"
+    )
     def test_invalid_memo_raise(self):
         memo = "invalid memo"
         with pytest.raises(
diff --git a/tests/sep/test_stellar_web_authentication.py b/tests/sep/test_stellar_web_authentication.py
index a966438d..c610d109 100644
--- a/tests/sep/test_stellar_web_authentication.py
+++ b/tests/sep/test_stellar_web_authentication.py
@@ -22,6 +22,7 @@
 )
 from stellar_sdk.transaction_builder import TransactionBuilder
 from stellar_sdk.transaction_envelope import TransactionEnvelope
+from stellar_sdk.type_checked import _STELLAR_SDK_RUNTIME_TYPE_CHECKING
 
 
 class TestStellarWebAuthentication:
@@ -117,6 +118,9 @@ def test_challenge_transaction_id_memo_as_int_permitted(self):
         ).transaction
         assert transaction.memo == IdMemo(memo)
 
+    @pytest.mark.skipif(
+        not _STELLAR_SDK_RUNTIME_TYPE_CHECKING, reason="runtime_type_checking_disabled"
+    )
     def test_challenge_transaction_non_id_memo_not_permitted(self):
         server_kp = Keypair.random()
         client_account_id = Keypair.random().public_key