In this paper, we study the hyperstability problem for the well-known
σ
-Jensen’s functional equation
f
x
y
+
f
x
σ
y
=
2
f
x
for all
x
,
y
∈
S
, where
S
is a semigroup and
σ
is an involution of
S
. We present sufficient conditions on
E
⊂
ℝ
+
S
2
so that the inhomogeneous form of
σ
-Jensen’s functional equation
f
x
y
+
f
x
σ
y
=
2
f
x
+
φ
x
,
y
for all
x
,
y
∈
S
, where the inhomogeneity
φ
is given, can be
E
-hyperstable on
S
.