diff --git a/Project.toml b/Project.toml
index 502fb136e7..56a156eb32 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "Hecke"
 uuid = "3e1990a7-5d81-5526-99ce-9ba3ff248f21"
-version = "0.31.4"
+version = "0.31.5"
 
 [deps]
 AbstractAlgebra = "c3fe647b-3220-5bb0-a1ea-a7954cac585d"
@@ -37,7 +37,7 @@ LazyArtifacts = "1.6"
 Libdl = "1.6"
 LinearAlgebra = "1.6"
 Markdown = "1.6"
-Nemo = "^0.44.0"
+Nemo = "^0.45.0"
 Pkg = "1.6"
 Polymake = "0.10, 0.11"
 Printf = "1.6"
diff --git a/src/AlgAss/radical.jl b/src/AlgAss/radical.jl
index 79f4079d2b..44650736e8 100644
--- a/src/AlgAss/radical.jl
+++ b/src/AlgAss/radical.jl
@@ -366,7 +366,7 @@ function _lift!(A::zzModMatrix, B::fpMatrix, Mtemp)
 end
 
 function _lift!(A::zzModMatrix, B::FpMatrix, Mtemp::ZZMatrix)
-  ccall((:fmpz_mod_mat_get_fmpz_mat, libflint), Cvoid, (Ref{ZZMatrix}, Ref{FpMatrix}), Mtemp, B)
+  ccall((:fmpz_mod_mat_get_fmpz_mat, libflint), Cvoid, (Ref{ZZMatrix}, Ref{FpMatrix}, Ref{Nemo.fmpz_mod_ctx_struct}), Mtemp, B, base_ring(B).ninv)
   ccall((:fmpz_mat_get_nmod_mat, libflint), Cvoid, (Ref{zzModMatrix}, Ref{ZZMatrix}), A, Mtemp)
   return A
 end
diff --git a/src/Hecke.jl b/src/Hecke.jl
index f33cfef526..f666abad49 100644
--- a/src/Hecke.jl
+++ b/src/Hecke.jl
@@ -391,8 +391,11 @@ _get_attributes(G::Map{<:Any, <:Any, HeckeMap, <:Any}) = _get_attributes(G.heade
 _get_attributes!(G::Map{<:Any, <:Any, HeckeMap, <:Any}) = _get_attributes!(G.header)
 _is_attribute_storing_type(::Type{Map{<:Any, <:Any, HeckeMap, <:Any}}) = true
 
-import Nemo: libflint, libantic, libarb  #to be able to reference libraries by full path
-                                         #to avoid calling the "wrong" copy
+import Nemo: libflint  #to be able to reference libraries by full path
+                       #to avoid calling the "wrong" copy
+
+const libantic = libflint
+const libarb = libflint
 
 ################################################################################
 #
diff --git a/src/Misc/Arb.jl b/src/Misc/Arb.jl
index dc8244f3ed..96e623ecd0 100644
--- a/src/Misc/Arb.jl
+++ b/src/Misc/Arb.jl
@@ -62,7 +62,7 @@ function abs_upper_bound(::Type{ZZRingElem}, x::ArbFieldElem)
   ccall((:arb_get_abs_ubound_arf, libarb), Nothing,
         (Ref{arf_struct}, Ref{ArbFieldElem}, Int), tarf, x, 64)
 
-  if ccall((:arf_is_nan, Nemo.libarb), Bool, (Ref{arf_struct}, ), tarf)
+  if ccall((:arf_is_nan, libarb), Bool, (Ref{arf_struct}, ), tarf)
     throw(Base.InexactError(:abs_upper_bound, x, ZZRingElem))
   end
 
diff --git a/src/Misc/FiniteField.jl b/src/Misc/FiniteField.jl
index 4a2392d031..ee7e57ee3d 100644
--- a/src/Misc/FiniteField.jl
+++ b/src/Misc/FiniteField.jl
@@ -4,7 +4,7 @@ function _reduce(a::fqPolyRepFieldElem)
   if a.length < 2*degree(A)
     ccall((:fq_nmod_reduce, libflint), Nothing, (Ref{fqPolyRepFieldElem}, Ref{fqPolyRepField}), a, A)
   else
-    ccall((:nmod_poly_rem, libflint), Nothing, (Ref{fqPolyRepFieldElem}, Ref{fqPolyRepFieldElem}, Ref{Nothing}, Ref{Nothing}), a, a, pointer_from_objref(A)+6*sizeof(Int) + 2*sizeof(Ptr{Nothing}), pointer_from_objref(A)+sizeof(ZZRingElem))
+    ccall((:nmod_poly_rem, libflint), Nothing, (Ref{fqPolyRepFieldElem}, Ref{fqPolyRepFieldElem}, Ref{Nothing}, Ref{Nothing}), a, a, pointer_from_objref(A)+6*sizeof(Int) + sizeof(Ptr{Nothing}), pointer_from_objref(A)+sizeof(ZZRingElem))
   end
 end
 
diff --git a/src/Misc/Matrix.jl b/src/Misc/Matrix.jl
index 1822733979..981968021f 100644
--- a/src/Misc/Matrix.jl
+++ b/src/Misc/Matrix.jl
@@ -982,7 +982,7 @@ function invmod(M::ZZMatrix, d::ZZRingElem)
     for i = 1:nrows(M)
       S[i, i+nrows(M)] = 1
     end
-    ccall((:fmpz_mod_mat_howell_form, libflint), Nothing, (Ref{ZZModMatrix}, ), S)
+    ccall((:fmpz_mod_mat_howell_form, libflint), Nothing, (Ref{ZZModMatrix}, Ref{Nemo.fmpz_mod_ctx_struct}), S, R.ninv)
     iM = S[1:nrows(M), nrows(M)+1:ncols(S)]
     #@assert iM*MR == identity_matrix(R, nrows(M))
     return lift(iM)
diff --git a/src/Misc/Poly.jl b/src/Misc/Poly.jl
index e1c0654ea8..395c88e66f 100644
--- a/src/Misc/Poly.jl
+++ b/src/Misc/Poly.jl
@@ -48,7 +48,7 @@ end
 
 function _inv_compose_mod(z::ZZModPolyRingElem)
   r = reverse(z)
-  ccall((:fmpz_mod_poly_inv_series_newton, libflint), Nothing,
+  ccall((:fmpz_mod_poly_inv_series, libflint), Nothing,
         (Ref{ZZModPolyRingElem}, Ref{ZZModPolyRingElem}, Int, Ref{fmpz_mod_ctx_struct}), r, r, length(r), z.parent.base_ring.ninv)
   return r
 end
diff --git a/src/ModAlgAss/MeatAxe.jl b/src/ModAlgAss/MeatAxe.jl
index af5987699c..90b7ac790b 100644
--- a/src/ModAlgAss/MeatAxe.jl
+++ b/src/ModAlgAss/MeatAxe.jl
@@ -1176,11 +1176,9 @@ function powermod(f::Zmodn_poly, e::ZZRingElem, g::Zmodn_poly)
   if fits(Int, e)
     return powermod(f, Int(e), g)
   else
-    _e = BigInt()
     z = parent(f)()
-    ccall((:fmpz_get_mpz, libflint), Nothing, (Ref{BigInt}, Ref{ZZRingElem}), _e, e)
-    ccall((:nmod_poly_powmod_mpz_binexp, libflint), Nothing,
-          (Ref{Zmodn_poly}, Ref{Zmodn_poly}, Ref{BigInt}, Ref{Zmodn_poly}),
+    ccall((:nmod_poly_powmod_fmpz_binexp, libflint), Nothing,
+          (Ref{Zmodn_poly}, Ref{Zmodn_poly}, Ref{ZZRingElem}, Ref{Zmodn_poly}),
            z, f, e, g)
     return z
   end