diff --git a/repo2docker/buildpacks/conda/install-base-env.bash b/repo2docker/buildpacks/conda/install-base-env.bash
index 9e3f4b9d..c3b24fcb 100755
--- a/repo2docker/buildpacks/conda/install-base-env.bash
+++ b/repo2docker/buildpacks/conda/install-base-env.bash
@@ -6,7 +6,7 @@ set -ex
 cd $(dirname $0)
 
 export MAMBA_VERSION=1.5.1
-export CONDA_VERSION=23.9.0
+export CONDA_VERSION=23.7.4
 
 URL="https://anaconda.org/conda-forge/micromamba/${MAMBA_VERSION}/download/${CONDA_PLATFORM}/micromamba-${MAMBA_VERSION}-0.tar.bz2"