diff --git a/requirements.txt b/requirements.txt
index dd001687f..0d6c13417 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ PyYAML~=6.0
 pydantic~=2.11.3
 requests~=2.32.3
 setuptools~=80.9.0
-cachetools~=6.1.0
+cachetools~=5.5.2
 prometheus-client~=0.22.1
 opentelemetry-api~=1.35.0
 opentelemetry-sdk~=1.35.0
@@ -17,4 +17,4 @@ fastapi>=0.116.1,<0.117.0
 uvicorn[standard]>=0.35.0,<0.36.0
 # OpenCTI
 filigran-sseclient>=1.0.2
-stix2~=3.0.1
\ No newline at end of file
+stix2~=3.0.1
diff --git a/setup.cfg b/setup.cfg
index 36dfd6a23..77d43094c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -44,7 +44,7 @@ install_requires =
     PyYAML~=6.0
     requests~=2.32.3
     setuptools~=80.9.0
-    cachetools~=6.1.0
+    cachetools~=5.5.2
     prometheus-client~=0.22.1
     opentelemetry-api~=1.35.0
     opentelemetry-sdk~=1.35.0