diff --git a/Project.toml b/Project.toml
index 32f9425..8914ea6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "CMB"
 uuid = "592991c5-7c29-5f04-aea2-6d9f924ef2a1"
 author = ["Justin Willmert <justin@willmert.me>"]
-version = "0.3.0"
+version = "0.3.1"
 
 [deps]
 AssociatedLegendrePolynomials = "2119f1ac-fb78-50f5-8cc0-dda848ebdb19"
@@ -23,9 +23,9 @@ BitFlags = "0.1"
 Compat = "3.25"
 FFTW = "1"
 FileIO = "1.6"
-HDF5 = "0.14, 0.15, 0.16"
-JLD = "0.12"
-MAT = "0.10"
+HDF5 = "0.16"
+JLD = "0.13"
+MAT = "0.10.3"
 Reexport = "0.2, 1"
 Requires = "1"
 StaticArrays = "0.11, 0.12, 1"
diff --git a/src/fileio_hdf5.jl b/src/fileio_hdf5.jl
index c8f74ba..5a020d2 100644
--- a/src/fileio_hdf5.jl
+++ b/src/fileio_hdf5.jl
@@ -187,7 +187,7 @@ end
 
         AT = HDF5.get_jl_type(dset)
         HDF5.ismmappable(AT) || error("Cannot mmap datasets of type ", AT)
-        offset = HDF5.h5d_get_offset(dset)
+        offset = HDF5.API.h5d_get_offset(dset)
 
         io = open(HDF5.filename(dset), read = true)
 
@@ -237,10 +237,9 @@ function write_obsmat(filename, obsmat::SparseMatrixCSC;
     h5open(filename, "w"; alignment = (0, align)) do hfile
         # Write the sparse matrix
         g = create_group(hfile, obsmat_name)
-        EARLY = HDF5.H5D_ALLOC_TIME_EARLY
-        g["indptr",  alloc_time = EARLY] = indptr
-        g["indices", alloc_time = EARLY] = indices
-        g["data",    alloc_time = EARLY] = data
+        g["indptr",  alloc_time = :early] = indptr
+        g["indices", alloc_time = :early] = indices
+        g["data",    alloc_time = :early] = data
         a = attributes(g)
         a["format"] = "csc"
         a["shape"] = [size(obsmat)...]
diff --git a/test/Project.toml b/test/Project.toml
index 5365269..e8e1a38 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -18,5 +18,5 @@ TestSetExtensions = "98d24dd4-01ad-11ea-1b02-c9a08f80db04"
 
 [compat]
 Documenter = "0.25.2, 0.26, 0.27"
-JLD = "0.12"
-MAT = "0.10"
+JLD = "0.13"
+MAT = "0.10.3"