diff --git a/packages/sdk-python/pyproject.toml b/packages/sdk-python/pyproject.toml
index fd61051..c7abb35 100644
--- a/packages/sdk-python/pyproject.toml
+++ b/packages/sdk-python/pyproject.toml
@@ -14,7 +14,7 @@ keywords = ["nirium", "stellar", "soroban", "defi", "agent", "autonomous", "trea
 dependencies = [
     "aiohttp>=3.14.5",
     "websockets>=13.0",
-    "stellar-sdk>=16.1.1,<17.0.0",
+    "stellar-sdk>=16.1.1,<18.0.0",
 ]
 
 [project.optional-dependencies]
diff --git a/packages/sdk-python/setup.py b/packages/sdk-python/setup.py
index ea089a2..e3f2d2a 100644
--- a/packages/sdk-python/setup.py
+++ b/packages/sdk-python/setup.py
@@ -8,7 +8,7 @@
     install_requires=[
         "websockets>=13.0",
         "aiohttp>=3.9.0",
-        "stellar-sdk>=11.0.0,<17.0.0",
+        "stellar-sdk>=11.0.0,<18.0.0",
     ],
     extras_require={
         "langchain": ["langchain-core>=0.3.0"],