diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 24c5efc2bc521a79be648590ca772b6de63c4e3f..6cf83d0af78016fd50a28844a9e1dc5a6dc7dc8a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,7 @@ variables:
   ## Spack organization and repository, e.g. spack/spack
   SPACK_ORGREPO: "spack/spack"
   ## Spack github version, e.g. v0.18.1 or commit hash
+  ## note: nightly builds will use e.g. releases/v0.19
   SPACK_VERSION: "v0.19.2"
   ## Space-separated list of spack cherry-picks
   SPACK_CHERRYPICKS: >
@@ -75,8 +76,9 @@ variables:
 
   ## EIC spack organization and repository, e.g. eic/eic-spack
   EICSPACK_ORGREPO: "eic/eic-spack"
-  ## EIC spack github version, e.g. v0.18 branch, v0.18.1 tag, or commit hash
-  EICSPACK_VERSION: "v0.19"
+  ## EIC spack github version, e.g. v0.19.7 or commit hash
+  ## note: nightly builds will use e.g. releases/v0.19
+  EICSPACK_VERSION: "v0.19.0"
   ## Space-separated list of eic-spack cherry-picks
   EICSPACK_CHERRYPICKS: "f892e2b5d7ea9d1f2e43741499e899ce21dd3d5a"
   ## Ref: https://github.com/eic/eic-spack/commit/[hash]
diff --git a/containers/jug/dev.Dockerfile b/containers/jug/dev.Dockerfile
index 9b9c786e5b6604e0145329d432bd173eba1bd3d3..e866d27ad35160a4dfcdd5ebc9b631e407f59414 100644
--- a/containers/jug/dev.Dockerfile
+++ b/containers/jug/dev.Dockerfile
@@ -26,7 +26,7 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked,id=${TARGETPLATFORM}
 ## Setup spack
 ENV SPACK_ROOT=/opt/spack
 ARG SPACK_ORGREPO="spack/spack"
-ARG SPACK_VERSION="develop"
+ARG SPACK_VERSION="releases/v0.19"
 ARG SPACK_CHERRYPICKS=""
 ADD https://api.github.com/repos/${SPACK_ORGREPO}/commits/${SPACK_VERSION} /tmp/spack.json
 RUN git clone https://github.com/${SPACK_ORGREPO}.git ${SPACK_ROOT}     \