diff --git a/Project.toml b/Project.toml
index 0c74d56..5919ac4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,6 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 Preferences = "21216c6a-2e73-6563-6e65-726566657250"
 PrettyPrint = "8162dcfd-2161-5ef2-ae6c-7681170c5f98"
 QuantumESPRESSOExpress = "524a00d3-5d12-4323-9774-d2c11dc9d82e"
-Serialization = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
 SimpleWorkflows = "6a97d125-85da-4b66-b300-4bba10360563"
 TikzGraphs = "b4f28e30-c73f-5eaf-a395-8a9db949a742"
 TikzPictures = "37f6aa50-8035-52d0-81c2-5a1d08754b2d"
diff --git a/src/EOS.jl b/src/EOS.jl
index 19ba78d..08579bf 100644
--- a/src/EOS.jl
+++ b/src/EOS.jl
@@ -6,8 +6,8 @@ using EquationOfStateRecipes
 using EquationsOfStateOfSolids: Parameters, EquationOfStateOfSolids, EnergyEquation
 using Express.EquationOfStateWorkflow: Scf, VcOptim, FitEos, buildjob
 using Express.EquationOfStateWorkflow.Recipes: buildworkflow
+import JLD2
 using QuantumESPRESSOExpress
-using Serialization: deserialize
 using SimpleWorkflows: run!, getresult
 import Plots
 # using ..ExpressCommands: @load_plugin
@@ -40,10 +40,10 @@ Plot an equation of state from `file` to file "out".
 
 # Args
 
-- `file`: a `.jls` file that saves the equation of state.
+- `file`: a `.jld2` file that saves the equation of state.
 """
 @cast function plot(file)
-    data = deserialize(file)
+    data = JLD2.load(file)
     for (key, value) in data
         if value isa Parameters
             eos = EnergyEquation(value)
diff --git a/src/ExpressCommands.jl b/src/ExpressCommands.jl
index a1bf8a7..da9853b 100644
--- a/src/ExpressCommands.jl
+++ b/src/ExpressCommands.jl
@@ -7,7 +7,6 @@ import JLD2
 using Pkg: add, rm, gc, @pkg_str
 using Preferences: @set_preferences!, @load_preference
 using PrettyPrint: pprint
-using Serialization: deserialize
 using SimpleWorkflows: Workflow
 import TikzGraphs
 import TikzPictures
@@ -19,11 +18,9 @@ Print the `file` in a pretty format.
 
 - `file`: the file to be printed. Available extensions are `.jld2`, `.json`, `.yaml`, `.yml` or `.toml`.
 """
-@cast function print(file)
+@cast function show(file)
     ext = lowercase(extension(file))
-    if ext == "jls"
-        pprint(deserialize(file))
-    elseif ext == "jld2"
+    if ext == "jld2"
         pprint(JLD2.load(file))
     elseif ext in ("json", "yaml", "yml", "toml")
         data = load(file)