diff --git a/broadbean/plotting.py b/broadbean/plotting.py
index 0ebed6900..e6bb80e20 100644
--- a/broadbean/plotting.py
+++ b/broadbean/plotting.py
@@ -25,8 +25,7 @@ def getSIScalingAndPrefix(minmax: tuple[float, float]) -> tuple[float, str]:
           string.
 
     """
-    # due to https://github.com/python/mypy/issues/6697
-    v_max: float = max(map(abs, minmax))  # type: ignore[arg-type, type-var, assignment]
+    v_max: float = max(map(abs, minmax))
     if v_max == 0:
         v_max = 1
     exponent = np.log10(v_max)
diff --git a/requirements.txt b/requirements.txt
index 2eb050e31..a2f239f81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ matplotlib~=3.8.0
 matplotlib-inline~=0.1.6
 mistune~=3.0.1
 numpy~=1.26.0
-mypy~=1.6.0
+mypy~=1.7.0
 mypy-extensions~=1.0.0
 nbclient~=0.8.0
 nbsphinx==0.9.1