diff --git a/src/HttpCommon.jl b/src/HttpCommon.jl
index 2312b5b..0c1d25e 100644
--- a/src/HttpCommon.jl
+++ b/src/HttpCommon.jl
@@ -125,7 +125,12 @@ const HttpMethodBitmaskToName = (HttpMethodBitmask => String)[v => k for (k, v)
 RFC1123_datetime(t::DateTime) = begin
     Dates.format(t, Dates.RFC1123Format) * " GMT"
 end
-RFC1123_datetime() = RFC1123_datetime(Dates.now(Dates.UTC))
+if VERSION < v"0.4-"
+    RFC1123_datetime() = RFC1123_datetime(Dates.nowutc())
+else
+    RFC1123_datetime() = RFC1123_datetime(Dates.now(Dates.UTC))
+end
+
 
 # HTTP Headers
 #
diff --git a/test/runtests.jl b/test/runtests.jl
index 81d0f73..1c9dda6 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -34,4 +34,7 @@ facts("HttpCommon utility functions") do
             ["foo" => "<a href='foo'>bar</a>run&++", "bar" => "123"]
     end
 
-end
\ No newline at end of file
+end
+
+# Check doesn't throw
+RFC1123_datetime()
\ No newline at end of file