diff --git a/titles/chuni/index.py b/titles/chuni/index.py
index 72845eb..99615b2 100644
--- a/titles/chuni/index.py
+++ b/titles/chuni/index.py
@@ -248,7 +248,7 @@ class ChuniServlet(BaseServlet):
             unzip = zlib.decompress(req_raw)
 
         except zlib.error as e:
-            self.logger.error(
+            self.logger.warning(
                 f"Failed to decompress v{version} {endpoint} request -> {e}"
             )
             return Response(zlib.compress(b'{"stat": "0"}'))
diff --git a/titles/cm/index.py b/titles/cm/index.py
index a5e4d42..1bfb988 100644
--- a/titles/cm/index.py
+++ b/titles/cm/index.py
@@ -80,7 +80,7 @@ class CardMakerServlet(BaseServlet):
             unzip = zlib.decompress(req_raw)
 
         except zlib.error as e:
-            self.logger.error(
+            self.logger.warning(
                 f"Failed to decompress v{version} {endpoint} request -> {e}"
             )
             return Response(zlib.compress(b'{"stat": "0"}'))
diff --git a/titles/mai2/index.py b/titles/mai2/index.py
index 9983475..81a4c11 100644
--- a/titles/mai2/index.py
+++ b/titles/mai2/index.py
@@ -183,7 +183,7 @@ class Mai2Servlet(BaseServlet):
             unzip = zlib.decompress(req_raw)
 
         except zlib.error as e:
-            self.logger.error(
+            self.logger.warning(
                 f"Failed to decompress v{version} {endpoint} request -> {e}"
             )
             return Response(zlib.compress(b'{"stat": "0"}'))
@@ -264,7 +264,7 @@ class Mai2Servlet(BaseServlet):
             unzip = zlib.decompress(req_raw)
 
         except zlib.error as e:
-            self.logger.error(
+            self.logger.warning(
                 f"Failed to decompress v{version} {endpoint} request -> {e}"
             )
             return Response(zlib.compress(b'{"stat": "0"}'))
diff --git a/titles/ongeki/index.py b/titles/ongeki/index.py
index 5ff3a31..e33baac 100644
--- a/titles/ongeki/index.py
+++ b/titles/ongeki/index.py
@@ -193,7 +193,7 @@ class OngekiServlet(BaseServlet):
             unzip = zlib.decompress(req_raw)
 
         except zlib.error as e:
-            self.logger.error(
+            self.logger.warning(
                 f"Failed to decompress v{version} {endpoint} request -> {e}"
             )
             return Response(zlib.compress(b'{"stat": "0"}'))