Update Project.toml

Co-authored-by: Johnny Chen <johnnychen94@hotmail.com>

Author: JeffFessler

Project.toml

@@ -12,11 +12,11 @@ SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
-DSP = "0.6"
-FFTW = "1"
-Reexport = "0.2, 1"
-SpecialFunctions = "1"
-julia = "1.5"
+DSP = "0.5.1, 0.6"
+FFTW = "0.3, 1"
+Reexport = "0.2, 1.0"
+SpecialFunctions = "0.7.1, 0.8, 0.9, 0.10, 1"
+julia = "1"
 
 [extras]
 DelimitedFiles = "8bb1440f-4735-579b-a4ab-409b98df4dab"