diff --git a/construct.yaml b/construct.yaml
index c162bdc..ff2739d 100644
--- a/construct.yaml
+++ b/construct.yaml
@@ -53,6 +53,7 @@ specs:
   - python-gfal2
   - voms
   # Others
+  - cachetools
   - diraccfg
   - future
   - git
@@ -69,7 +70,7 @@ specs:
   - pytz >=2015.7
   - requests >=2.9.1
   - rrdtool
-  - singularity
+  - singularity >=3.7
   - six
   - subprocess32
   - suds-jurko >=0.6
@@ -86,4 +87,4 @@ specs:
   # Probably not needed
   - lz4
   - python-xxhash
-  - xrootd
+  - xrootd >=5