diff --git a/pkg_defs/ska3-flight/meta.yaml b/pkg_defs/ska3-flight/meta.yaml
index 05d0fed9..58c52c30 100644
--- a/pkg_defs/ska3-flight/meta.yaml
+++ b/pkg_defs/ska3-flight/meta.yaml
@@ -9,7 +9,7 @@ requirements:
   # Packages required to run the package. These are the dependencies that
   # will be installed automatically whenever the package is installed.
   run:
-    - ska3-core ==2020.01.10
+    - ska3-core ==2020.5
     - ska3-template ==2019.09.03
     - aca_view ==0.3.0
     - acdc ==4.5.0
diff --git a/pkg_defs/ska3-matlab/meta.yaml b/pkg_defs/ska3-matlab/meta.yaml
index 9b0caccc..38a11584 100644
--- a/pkg_defs/ska3-matlab/meta.yaml
+++ b/pkg_defs/ska3-matlab/meta.yaml
@@ -9,7 +9,7 @@ requirements:
   # Packages required to run the package. These are the dependencies that
   # will be installed automatically whenever the package is installed.
   run:
-    - ska3-core ==2020.01.10
+    - ska3-core ==2020.5
     - ska3-template ==2019.09.03
     - aca_view ==0.3.0
     - acdc ==4.5.0