diff --git a/timeutils.nim b/timeutils.nim
index 0fd8516..9b37a7c 100644
--- a/timeutils.nim
+++ b/timeutils.nim
@@ -14,15 +14,9 @@ proc format*(ti: TimeInterval, fmt: string): string =
   let info = (zeroTime + ti).utc
   return info.format(fmt)
 
-# Will be deprecated in Nim 0.18.1 as it will exist in the standard times module.
-proc `-`*(a, b: DateTime): Duration {.deprecated} =
-  return times.`-`(a,b)
-
-proc `<`*(a, b: DateTime): bool {.deprecated} =
-  return times.`<`(a,b)
-
-proc `<=`*(a, b: DateTime): bool {.deprecated} =
-  return times.`<=`(a,b)
+proc format*(d: Duration, fmt: string): string =
+  let info = (fromUnix(0) + d).utc
+  return info.format(fmt)
 
 proc `<`*(a, b: TimeInterval): bool =
   return (zeroTime + a) < (zeroTime + b)
diff --git a/timeutils.nimble b/timeutils.nimble
index f1924c3..105ccba 100644
--- a/timeutils.nimble
+++ b/timeutils.nimble
@@ -1,11 +1,10 @@
 # Package
 
-version       = "0.5.1"
+version       = "0.5.2"
 author        = "Jonathan Bernard"
 description   = "Utility methods to fill in the lacking time support in Nim\'s stdlib."
 license       = "BSD3"
 
 # Dependencies
 
-requires "nim >= 0.19.0"
-
+requires "nim >= 1.0.0"