diff --git a/pixie.nimble b/pixie.nimble
index 2e01f52..13f93a5 100644
--- a/pixie.nimble
+++ b/pixie.nimble
@@ -10,7 +10,7 @@ requires "vmath >= 1.1.4"
 requires "chroma >= 0.2.6"
 requires "zippy >= 0.10.3"
 requires "flatty >= 0.3.4"
-requires "nimsimd >= 1.1.10"
+requires "nimsimd >= 1.2.0"
 requires "bumpy >= 1.1.1"
 
 task bindings, "Generate bindings":
diff --git a/src/pixie/simd.nim b/src/pixie/simd.nim
index 57b0b8d..bc2cbb6 100644
--- a/src/pixie/simd.nim
+++ b/src/pixie/simd.nim
@@ -1,16 +1,18 @@
-import simd/internal
+import nimsimd/hassimd
 
-export internal
+export hassimd
 
 const allowSimd* = not defined(pixieNoSimd) and not defined(tcc)
 
 when allowSimd:
   when defined(amd64):
-    import simd/sse2, simd/avx, simd/avx2
-    export sse2, avx, avx2
+    import simd/sse2
+    export sse2
 
     when not defined(pixieNoAvx):
-      import nimsimd/runtimecheck
+      import nimsimd/runtimecheck, simd/avx, simd/avx2
+      export avx, avx2
+
       let
         cpuHasAvx* = checkInstructionSets({AVX})
         cpuHasAvx2* = checkInstructionSets({AVX, AVX2})
diff --git a/src/pixie/simd/avx.nim b/src/pixie/simd/avx.nim
index 82b4333..dfcd9cf 100644
--- a/src/pixie/simd/avx.nim
+++ b/src/pixie/simd/avx.nim
@@ -1,4 +1,4 @@
-import chroma, internal, nimsimd/avx
+import chroma, nimsimd/hassimd, nimsimd/avx
 
 when defined(gcc) or defined(clang):
   {.localPassc: "-mavx".}
diff --git a/src/pixie/simd/avx2.nim b/src/pixie/simd/avx2.nim
index 06c41f2..9a02657 100644
--- a/src/pixie/simd/avx2.nim
+++ b/src/pixie/simd/avx2.nim
@@ -1,4 +1,4 @@
-import avx, chroma, internal, nimsimd/avx2, pixie/blends, pixie/common, vmath
+import avx, chroma, nimsimd/hassimd, nimsimd/avx2, pixie/blends, pixie/common, vmath
 
 when defined(gcc) or defined(clang):
   {.localPassc: "-mavx2".}
diff --git a/src/pixie/simd/internal.nim b/src/pixie/simd/internal.nim
deleted file mode 100644
index 9516890..0000000
--- a/src/pixie/simd/internal.nim
+++ /dev/null
@@ -1,123 +0,0 @@
-import std/macros, std/tables
-
-var simdProcs* {.compiletime.}: Table[string, NimNode]
-
-proc procName(procedure: NimNode): string =
-  ## Given a procedure this returns the name as a string.
-  let nameNode = procedure[0]
-  if nameNode.kind == nnkPostfix:
-    nameNode[1].strVal
-  else:
-    nameNode.strVal
-
-proc procArguments(procedure: NimNode): seq[NimNode] =
-  ## Given a procedure this gets the arguments as a list.
-  for i, arg in procedure[3]:
-    if i > 0:
-      for j in 0 ..< arg.len - 2:
-        result.add(arg[j])
-
-proc procReturnType(procedure: NimNode): NimNode =
-  ## Given a procedure this gets the return type.
-  procedure[3][0]
-
-proc procSignature(procedure: NimNode): string =
-  ## Given a procedure this returns the signature as a string.
-  result = "("
-
-  for i, arg in procedure[3]:
-    if i > 0:
-      for j in 0 ..< arg.len - 2:
-        result &= arg[^2].repr & ", "
-
-  if procedure[3].len > 1:
-    result = result[0 ..^ 3]
-
-  result &= ")"
-
-  let ret = procedure.procReturnType()
-  if ret.kind != nnkEmpty:
-    result &= ": " & ret.repr
-
-proc callAndReturn(name: NimNode, procedure: NimNode): NimNode =
-  ## Produces a procedure call with arguments.
-  let
-    retType = procedure.procReturnType()
-    call = newNimNode(nnkCall)
-  call.add(name)
-  for arg in procedure.procArguments():
-    call.add(arg)
-  if retType.kind == nnkEmpty:
-    result = quote do:
-      `call`
-      return
-  else:
-    result = quote do:
-      return `call`
-
-macro simd*(procedure: untyped) =
-  let signature = procedure.procName() & procSignature(procedure)
-  simdProcs[signature] = procedure.copy()
-  return procedure
-
-macro hasSimd*(procedure: untyped) =
-  let
-    name = procedure.procName()
-    nameNeon = name & "Neon"
-    nameSse2 = name & "Sse2"
-    nameAvx = name & "Avx"
-    nameAvx2 = name & "Avx2"
-    callNeon = callAndReturn(ident(nameNeon), procedure)
-    callSse2 = callAndReturn(ident(nameSse2), procedure)
-    callAvx = callAndReturn(ident(nameAvx), procedure)
-    callAvx2 = callAndReturn(ident(nameAvx2), procedure)
-
-  var
-    foundSimd: bool
-
-  if procedure[6].kind != nnkStmtList:
-    error("hasSimd proc body must start with nnkStmtList")
-
-  var insertIdx = 0
-  if procedure[6][0].kind == nnkCommentStmt:
-    insertIdx = 1
-
-  when defined(amd64) and not defined(pixieNoAvx):
-    if nameAvx2 & procSignature(procedure) in simdProcs:
-      foundSimd = true
-      procedure[6].insert(insertIdx, quote do:
-        if cpuHasAvx2:
-          `callAvx2`
-      )
-      inc insertIdx
-    if nameAvx & procSignature(procedure) in simdProcs:
-      foundSimd = true
-      procedure[6].insert(insertIdx, quote do:
-        if cpuHasAvx:
-          `callAvx`
-      )
-      inc insertIdx
-  when defined(amd64):
-    if nameSse2 & procSignature(procedure) in simdProcs:
-      foundSimd = true
-      procedure[6].insert(insertIdx, quote do:
-        `callSse2`
-      )
-      inc insertIdx
-      while procedure[6].len > insertIdx:
-        procedure[6].del(insertIdx)
-  elif defined(arm64):
-    if nameNeon & procSignature(procedure) in simdProcs:
-      foundSimd = true
-      procedure[6].insert(insertIdx, quote do:
-        `callNeon`
-      )
-      inc insertIdx
-      while procedure[6].len > insertIdx:
-        procedure[6].del(insertIdx)
-
-  when not defined(pixieNoSimd):
-    if not foundSimd:
-      echo "No SIMD found for " & name & procSignature(procedure)
-
-  return procedure
diff --git a/src/pixie/simd/neon.nim b/src/pixie/simd/neon.nim
index 5159f7e..a9827db 100644
--- a/src/pixie/simd/neon.nim
+++ b/src/pixie/simd/neon.nim
@@ -1,4 +1,4 @@
-import chroma, internal, nimsimd/neon, pixie/blends, pixie/common, vmath
+import chroma, nimsimd/hassimd, nimsimd/neon, pixie/blends, pixie/common, vmath
 
 when defined(release):
   {.push checks: off.}
diff --git a/src/pixie/simd/sse2.nim b/src/pixie/simd/sse2.nim
index 4d1110c..cd2057e 100644
--- a/src/pixie/simd/sse2.nim
+++ b/src/pixie/simd/sse2.nim
@@ -1,4 +1,4 @@
-import chroma, internal, nimsimd/sse2, pixie/blends, pixie/common, vmath
+import chroma, nimsimd/hassimd, nimsimd/sse2, pixie/blends, pixie/common, vmath
 
 when defined(release):
   {.push checks: off.}