diff --git a/sds_data_manager/orchestration/dependencies/imap_swapi_dependencies.yaml b/sds_data_manager/orchestration/dependencies/imap_swapi_dependencies.yaml
index 0f6585de8..1e9e35ad0 100644
--- a/sds_data_manager/orchestration/dependencies/imap_swapi_dependencies.yaml
+++ b/sds_data_manager/orchestration/dependencies/imap_swapi_dependencies.yaml
@@ -19,6 +19,7 @@ l3a_spice_common: &l3a_spice_common
   - source: ephemeris_reconstructed
     data_type: spice
     descriptor: historical
+    required: false
     trigger_job: false
   - source: ephemeris_predicted
     data_type: spice
diff --git a/sds_data_manager/orchestration/dependencies/imap_swe_dependencies.yaml b/sds_data_manager/orchestration/dependencies/imap_swe_dependencies.yaml
index a752853b4..740139a74 100644
--- a/sds_data_manager/orchestration/dependencies/imap_swe_dependencies.yaml
+++ b/sds_data_manager/orchestration/dependencies/imap_swe_dependencies.yaml
@@ -111,6 +111,7 @@
     - source: ephemeris_reconstructed
       data_type: spice
       descriptor: historical
+      required: false
       trigger_job: false
     - source: ephemeris_predicted
       data_type: spice