diff --git a/Project.toml b/Project.toml
index e397915a..c09966f8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "PRAS"
 uuid = "05348d26-1c52-11e9-35e3-9d51842d34b9"
 authors = ["Gord Stephen <gord.stephen@nrel.gov>"]
-version = "0.6.2"
+version = "0.6.3"
 
 [deps]
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
@@ -19,7 +19,7 @@ StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 TimeZones = "f269a46b-ccf7-5d73-abea-4c690281aa53"
 
 [compat]
-HDF5 = "0.15"
+HDF5 = "0.16"
 julia = "1.3"
 
 [extras]
diff --git a/src/PRASBase/PRASBase.jl b/src/PRASBase/PRASBase.jl
index 4138a454..75e9f971 100644
--- a/src/PRASBase/PRASBase.jl
+++ b/src/PRASBase/PRASBase.jl
@@ -3,12 +3,16 @@
 import ..PRAS_VERSION
 
 import Base: broadcastable
+
 import Dates: @dateformat_str, AbstractDateTime, DateTime,
               Period, Minute, Hour, Day, Year
-import HDF5: attributes, File, Group, Dataset, Datatype, dataspace,
-             h5open, create_group, create_dataset,
-             h5t_create, h5t_copy, h5t_insert, h5t_set_size, H5T_COMPOUND,
-             hdf5_type_id, h5d_write, H5S_ALL, H5P_DEFAULT
+
+import HDF5: HDF5, attributes, File, Group, Dataset, Datatype, dataspace,
+             h5open, create_group, create_dataset, hdf5_type_id
+
+import HDF5.API: h5t_create, h5t_copy, h5t_insert, h5t_set_size, H5T_COMPOUND,
+                 h5d_write, H5S_ALL, H5P_DEFAULT
+
 import TimeZones: TimeZone, ZonedDateTime
 
 export
diff --git a/src/PRASBase/write.jl b/src/PRASBase/write.jl
index f033e077..c1ec757c 100644
--- a/src/PRASBase/write.jl
+++ b/src/PRASBase/write.jl
@@ -82,7 +82,7 @@ function process_regions!(
 
     string_table!(regions, "_core", regions_core_colnames, regions_core, strlen)
 
-    regions["load", compress = compression] = sys.regions.load
+    regions["load", deflate = compression] = sys.regions.load
 
     return
 
@@ -103,11 +103,11 @@ function process_generators!(
 
     string_table!(generators, "_core", gens_core_colnames, gens_core, strlen)
 
-    generators["capacity", compress = compression] = sys.generators.capacity
+    generators["capacity", deflate = compression] = sys.generators.capacity
 
-    generators["failureprobability", compress = compression] = sys.generators.λ
+    generators["failureprobability", deflate = compression] = sys.generators.λ
 
-    generators["repairprobability", compress = compression] = sys.generators.μ
+    generators["repairprobability", deflate = compression] = sys.generators.μ
 
     return
 
@@ -128,27 +128,27 @@ function process_storages!(
 
     string_table!(storages, "_core", stors_core_colnames, stors_core, strlen)
 
-    storages["chargecapacity", compress = compression] =
+    storages["chargecapacity", deflate = compression] =
         sys.storages.charge_capacity
 
-    storages["dischargecapacity", compress = compression] =
+    storages["dischargecapacity", deflate = compression] =
         sys.storages.discharge_capacity
 
-    storages["energycapacity", compress = compression] =
+    storages["energycapacity", deflate = compression] =
         sys.storages.energy_capacity
 
-    storages["chargeefficiency", compress = compression] =
+    storages["chargeefficiency", deflate = compression] =
         sys.storages.charge_efficiency
 
-    storages["dischargeefficiency", compress = compression] =
+    storages["dischargeefficiency", deflate = compression] =
         sys.storages.discharge_efficiency
 
-    storages["carryoverefficiency", compress = compression] =
+    storages["carryoverefficiency", deflate = compression] =
          sys.storages.carryover_efficiency
 
-    storages["failureprobability", compress = compression] = sys.storages.λ
+    storages["failureprobability", deflate = compression] = sys.storages.λ
 
-    storages["repairprobability", compress = compression] = sys.storages.μ
+    storages["repairprobability", deflate = compression] = sys.storages.μ
 
     return
 
@@ -170,37 +170,37 @@ function process_generatorstorages!(
     string_table!(generatorstorages, "_core",
                   genstors_core_colnames, genstors_core, strlen)
 
-    generatorstorages["inflow", compress = compression] =
+    generatorstorages["inflow", deflate = compression] =
         sys.generatorstorages.inflow
 
-    generatorstorages["gridwithdrawalcapacity", compress = compression] =
+    generatorstorages["gridwithdrawalcapacity", deflate = compression] =
         sys.generatorstorages.gridwithdrawal_capacity
 
-    generatorstorages["gridinjectioncapacity", compress = compression] =
+    generatorstorages["gridinjectioncapacity", deflate = compression] =
         sys.generatorstorages.gridinjection_capacity
 
-    generatorstorages["chargecapacity", compress = compression] =
+    generatorstorages["chargecapacity", deflate = compression] =
         sys.generatorstorages.charge_capacity
 
-    generatorstorages["dischargecapacity", compress = compression] =
+    generatorstorages["dischargecapacity", deflate = compression] =
         sys.generatorstorages.discharge_capacity
 
-    generatorstorages["energycapacity", compress = compression] =
+    generatorstorages["energycapacity", deflate = compression] =
         sys.generatorstorages.energy_capacity
 
-    generatorstorages["chargeefficiency", compress = compression] =
+    generatorstorages["chargeefficiency", deflate = compression] =
         sys.generatorstorages.charge_efficiency
 
-    generatorstorages["dischargeefficiency", compress = compression] =
+    generatorstorages["dischargeefficiency", deflate = compression] =
         sys.generatorstorages.discharge_efficiency
 
-    generatorstorages["carryoverefficiency", compress = compression] =
+    generatorstorages["carryoverefficiency", deflate = compression] =
         sys.generatorstorages.carryover_efficiency
 
-    generatorstorages["failureprobability", compress = compression] =
+    generatorstorages["failureprobability", deflate = compression] =
         sys.generatorstorages.λ
 
-    generatorstorages["repairprobability", compress = compression] =
+    generatorstorages["repairprobability", deflate = compression] =
         sys.generatorstorages.μ
 
     return
@@ -226,15 +226,15 @@ function process_lines_interfaces!(
 
     string_table!(lines, "_core", lines_core_colnames, lines_core, strlen)
 
-    lines["forwardcapacity", compress = compression] =
+    lines["forwardcapacity", deflate = compression] =
         sys.lines.forward_capacity
 
-    lines["backwardcapacity", compress = compression] =
+    lines["backwardcapacity", deflate = compression] =
         sys.lines.backward_capacity
 
-    lines["failureprobability", compress = compression] = sys.lines.λ
+    lines["failureprobability", deflate = compression] = sys.lines.λ
 
-    lines["repairprobability", compress = compression] = sys.lines.μ
+    lines["repairprobability", deflate = compression] = sys.lines.μ
 
 
     interfaces = create_group(f, "interfaces")
@@ -248,10 +248,10 @@ function process_lines_interfaces!(
         getindex.(Ref(sys.regions.names), sys.interfaces.regions_to)
     string_table!(interfaces, "_core", ints_core_colnames, ints_core, strlen)
 
-    interfaces["forwardcapacity", compress = compression] =
+    interfaces["forwardcapacity", deflate = compression] =
         sys.interfaces.limit_forward
 
-    interfaces["backwardcapacity", compress = compression] =
+    interfaces["backwardcapacity", deflate = compression] =
         sys.interfaces.limit_backward
 
     return