diff --git a/ci/build_conda_python.sh b/ci/build_conda_python.sh
index 9397fa98..0406f265 100755
--- a/ci/build_conda_python.sh
+++ b/ci/build_conda_python.sh
@@ -6,8 +6,6 @@ set -euo pipefail
 
 source rapids-configure-sccache
 
-source rapids-date-string
-
 export CMAKE_GENERATOR=Ninja
 
 # Generate package version from git tags.