diff --git a/companion.txt b/companion.txt
index 769c574d315..d5295032928 100644
--- a/companion.txt
+++ b/companion.txt
@@ -6,7 +6,11 @@ healpy
 
 # Needed for GraceDB uploads and skymap generation
 ligo-gracedb>=2.10.0
-ligo.skymap!=1.1.0
+#ligo.skymap!=1.1.0
+# Temporarily use fork that doesn't force numpy<2.0 incompatibilities
+# Remove when PR merged, or numpy > 2.0 is a hard requirement
+# https://github.com/lpsinger/ligo.skymap/pull/28
+git+https://github.com/ahnitz/ligo.skymap@lreq
 
 # auxiliary samplers
 epsie>=1.0
@@ -18,6 +22,10 @@ https://github.com/willvousden/ptemcee/archive/master.tar.gz
 --extra-index-url https://download.pytorch.org/whl/cpu
 torch
 nessai>=0.11.0
+
+# Needed to make sure numpy2 build works, remove when PR merged
+# https://github.com/pypmc/pypmc/pull/105/files
+git+https://github.com/ahnitz/pypmc@n2
 snowline
 
 # useful to look at PyCBC Live with htop
diff --git a/tools/docker_build_dist.sh b/tools/docker_build_dist.sh
index 14d26c33f29..21f65b02aab 100755
--- a/tools/docker_build_dist.sh
+++ b/tools/docker_build_dist.sh
@@ -44,7 +44,7 @@ if [ "x${PYCBC_CONTAINER}" == "xpycbc_rhel_virtualenv" ]; then
   yum makecache
   yum -y install openssl-devel
   yum -y install python3-virtualenv
-  yum -y install hdf5-static libxml2-static zlib-static libstdc++-static cfitsio-static glibc-static swig fftw-static gsl-static --skip-broken
+  yum -y install hdf5-static libxml2-static zlib-static libstdc++-static cfitsio-static glibc-static swig fftw-static gsl-static gsl gsl-devel --skip-broken
 
   CVMFS_PATH=/cvmfs/software.igwn.org/pycbc/${ENV_OS}/virtualenv
   mkdir -p ${CVMFS_PATH}