diff --git a/requirements.d/development.lock.txt b/requirements.d/development.lock.txt
index c83c8c7c8..edcf05c2c 100644
--- a/requirements.d/development.lock.txt
+++ b/requirements.d/development.lock.txt
@@ -1,3 +1,4 @@
+chardet==5.2.0
 setuptools==80.9.0
 setuptools-scm==9.2.2
 pip==26.0.1
diff --git a/requirements.d/development.txt b/requirements.d/development.txt
index 96c20f0f1..5da779e80 100644
--- a/requirements.d/development.txt
+++ b/requirements.d/development.txt
@@ -1,3 +1,4 @@
+chardet < 6
 setuptools >=78.1.1
 setuptools_scm
 pip !=24.2