diff --git a/ext/LinearSolveEnzymeExt.jl b/ext/LinearSolveEnzymeExt.jl
index 7cc613bb4..26d530d19 100644
--- a/ext/LinearSolveEnzymeExt.jl
+++ b/ext/LinearSolveEnzymeExt.jl
@@ -132,8 +132,8 @@ end
 function EnzymeCore.EnzymeRules.reverse(config, func::Const{typeof(LinearSolve.solve!)}, ::Type{RT}, cache, linsolve::EnzymeCore.Annotation{LP}; kwargs...) where {RT, LP <: LinearSolve.LinearCache}
     y, dys, _linsolve, dAs, dbs = cache
 
-    @assert !(typeof(linsolve) <: Const)
-    @assert !(typeof(linsolve) <: Active)
+    @assert !(linsolve isa Const)
+    @assert !(linsolve isa Active)
 
     if EnzymeRules.width(config) == 1
         dys = (dys,)
diff --git a/ext/LinearSolveIterativeSolversExt.jl b/ext/LinearSolveIterativeSolversExt.jl
index 928a8bb6c..3d73197eb 100644
--- a/ext/LinearSolveIterativeSolversExt.jl
+++ b/ext/LinearSolveIterativeSolversExt.jl
@@ -90,7 +90,7 @@ function LinearSolve.init_cacheval(alg::IterativeSolversJL, A, b, u, Pl, Pr, max
 end
 
 function SciMLBase.solve!(cache::LinearCache, alg::IterativeSolversJL; kwargs...)
-    if cache.isfresh || !(typeof(alg) <: IterativeSolvers.GMRESIterable)
+    if cache.isfresh || !(alg isa IterativeSolvers.GMRESIterable)
         solver = LinearSolve.init_cacheval(alg, cache.A, cache.b, cache.u, cache.Pl,
             cache.Pr,
             cache.maxiters, cache.abstol, cache.reltol,
diff --git a/src/factorization.jl b/src/factorization.jl
index b34419ffe..1ec3bd861 100644
--- a/src/factorization.jl
+++ b/src/factorization.jl
@@ -1342,7 +1342,7 @@ function init_cacheval(::SparspakFactorization, A, b, u, Pl, Pr, maxiters::Int,
     reltol,
     verbose::Bool, assumptions::OperatorAssumptions)
     A = convert(AbstractMatrix, A)
-    if typeof(A) <: SparseArrays.AbstractSparseArray
+    if A isa SparseArrays.AbstractSparseArray
         return sparspaklu(SparseMatrixCSC(size(A)..., getcolptr(A), rowvals(A),
                 nonzeros(A)),
             factorize = false)