diff --git a/tspb_cast/go.mod b/tspb_cast/go.mod
index 7750641..ced98d4 100644
--- a/tspb_cast/go.mod
+++ b/tspb_cast/go.mod
@@ -2,4 +2,4 @@ module github.com/88labs/go-utils/tspb_cast
 
 go 1.22
 
-require google.golang.org/protobuf v1.35.2
+require google.golang.org/protobuf v1.36.0
diff --git a/tspb_cast/go.sum b/tspb_cast/go.sum
index 6ee1a70..c353399 100644
--- a/tspb_cast/go.sum
+++ b/tspb_cast/go.sum
@@ -2,5 +2,5 @@ github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.0 h1:mjIs9gYtt56AzC4ZaffQuh88TZurBGhIJMBZGSxNerQ=
+google.golang.org/protobuf v1.36.0/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=