diff --git a/cabal.config b/cabal.config
index 71c9c4bdc7..30439c776f 100644
--- a/cabal.config
+++ b/cabal.config
@@ -35,7 +35,7 @@ constraints:
   , blaze-html ==0.9.1.2
   , blaze-markup ==0.8.2.8
   , byteorder ==1.0.4
-  , bytestring ==0.11.5.1
+  , bytestring ==0.11.5.2
   , casa-client ==0.0.2
   , casa-types ==0.0.2
   , case-insensitive ==1.2.1.0
@@ -150,7 +150,7 @@ constraints:
   , retry ==0.9.3.1
   , rio ==0.1.22.0
   , rio-orphans ==0.1.2.0
-  , rio-prettyprint ==0.1.4.0
+  , rio-prettyprint ==0.1.5.0
   , rts ==1.0.2
   , safe ==0.3.19
   , safe-exceptions ==0.1.7.4