diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index 974e878..a20f315 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -15,11 +15,6 @@ jobs:
   timeoutInMinutes: 360
 
   steps:
-  - script: |
-         rm -rf /opt/ghc
-         df -h
-    displayName: Manage disk space
-
   # configure qemu binfmt-misc running.  This allows us to run docker containers
   # embedded qemu-static
   - script: |
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 595f8b5..438ed2b 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -31,11 +31,10 @@ pkgs_dirs:
 
 CONDARC
 
-
-mamba install --update-specs --yes --quiet --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
-mamba update --update-specs --yes --quiet --channel conda-forge \
-    conda-build pip boa conda-forge-ci-setup=3
+mamba install --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup=3
+mamba update --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
+    pip mamba conda-build boa conda-forge-ci-setup
 
 # set up the condarc
 setup_conda_rc "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
diff --git a/.scripts/logging_utils.sh b/.scripts/logging_utils.sh
index 57bc95c..aff009f 100644
--- a/.scripts/logging_utils.sh
+++ b/.scripts/logging_utils.sh
@@ -12,7 +12,7 @@ function startgroup {
             echo "##[group]$1";;
         travis )
             echo "$1"
-            echo -en 'travis_fold:start:'"${1// /}"'\\r';;
+            echo -en 'travis_fold:start:'"${1// /}"'\r';;
         github_actions )
             echo "::group::$1";;
         * )
@@ -28,7 +28,7 @@ function endgroup {
         azure )
             echo "##[endgroup]";;
         travis )
-            echo -en 'travis_fold:end:'"${1// /}"'\\r';;
+            echo -en 'travis_fold:end:'"${1// /}"'\r';;
         github_actions )
             echo "::endgroup::";;
     esac
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 1addda6..e896c78 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "vak" %}
-{% set version = "1.0.0a1" %}
+{% set version = "1.0.0a3" %}
 
 
 package:
@@ -8,7 +8,7 @@ package:
 
 source:
   url: https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/vak-{{ version }}.tar.gz
-  sha256: 1cbf712524c28eec56983e054b98b9ed9dc1dd3edc140d6c0622c9edfdfb69a9
+  sha256: 39641cf095fe2d811c25f226b34a487c4146f2694fcd2345634f63cfab2acf99
 
 build:
   number: 0
@@ -20,26 +20,28 @@ build:
 requirements:
   host:
     - pip
-    - python >=3.8
+    - python >=3.9
     - flit-core
   run:
     - attrs >=19.3.0
-    - crowsetta >=3.4.0,<4.0.0
+    - crowsetta >=5.0.1
     - dask-core >=2.10.1
     - evfuncs >=0.3.4
     - joblib >=0.14.1
     - matplotlib-base >=3.3.3
-    - pytorch-lightning >=1.8.4.post0
+    - pytorch-lightning >=2.0.7
     - numpy >=1.18.1
     - pandas >=1.0.1
+    - pynndescent >=0.5.10
     - python >=3.8
     - scipy >=1.4.1
     - pysoundfile >=0.10.3
     - tensorboard >=2.8.0
     - toml >=0.10.2
-    - pytorch >=1.7.1
-    - torchvision >=0.5.0
+    - pytorch >=2.0.1
+    - torchvision >=0.15.2
     - tqdm >=4.42.1
+    - umap-learn >=0.5.3
 
 test:
   imports: