diff --git a/src/oda_reader/dac1.py b/src/oda_reader/dac1.py
index f3985b2..7a67a0a 100644
--- a/src/oda_reader/dac1.py
+++ b/src/oda_reader/dac1.py
@@ -4,7 +4,7 @@
 from oda_reader.download.download_tools import download
 
 DATAFLOW_ID: str = "DSD_DAC1@DF_DAC1"
-DATAFLOW_VERSION: str = "1.5"
+DATAFLOW_VERSION: str = "1.7"
 
 
 @cache_info
diff --git a/src/oda_reader/dac2a.py b/src/oda_reader/dac2a.py
index 707c727..da5d61c 100644
--- a/src/oda_reader/dac2a.py
+++ b/src/oda_reader/dac2a.py
@@ -13,7 +13,7 @@
 )
 
 DATAFLOW_ID: str = "DSD_DAC2@DF_DAC2A"
-DATAFLOW_VERSION: str = "1.6"
+DATAFLOW_VERSION: str = "1.4"
 
 
 def get_full_dac2a_parquet_id() -> str: