diff --git a/pyproject.toml b/pyproject.toml
index 3df69219..afb3d33b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ classifiers = [
 requires-python = ">=3.10"
 
 dependencies = [
-    "inifix>=3.0.0",
+    "inifix>=5.1.0",
     "loguru>=0.5.3",
     "matplotlib>=3.5.0",
     "numpy>=1.21.2",
diff --git a/uv.lock b/uv.lock
index daf3f9c3..eaac214e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -608,7 +608,7 @@ requires-dist = [
     { name = "cblind", marker = "extra == 'all'", specifier = ">=2.3.0" },
     { name = "cmocean", marker = "extra == 'all'", specifier = ">=3.0.3" },
     { name = "cmyt", marker = "extra == 'all'", specifier = ">=2.0.0" },
-    { name = "inifix", specifier = ">=3.0.0" },
+    { name = "inifix", specifier = ">=5.1.0" },
     { name = "lick", marker = "extra == 'all'", specifier = ">=0.5.1" },
     { name = "loguru", specifier = ">=0.5.3" },
     { name = "matplotlib", specifier = ">=3.5.0" },