diff --git a/changelog.md b/changelog.md
index ae896aa98f6815b126375ed167382f3a4c127241..714a6f26fcbbc8f33d7d05514ffc79a500f67343 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,3 @@
-### 1.0.0 (October 27th, 2022)
+### 1.0.0 (March 13, 2023)
 
 - First version of the `semaphore-compat` package.
diff --git a/semaphore-compat.cabal b/semaphore-compat.cabal
index 67021741a7cdb7707d8f26d262ce48cc1e3d604d..daa5091bd7026a737212b10a962625c6d232966a 100644
--- a/semaphore-compat.cabal
+++ b/semaphore-compat.cabal
@@ -45,7 +45,7 @@ library
 
     build-depends:
         base
-          >= 4.12 && < 4.19
+          >= 4.12 && < 4.20
       , exceptions
           >= 0.7  && < 0.11
 
@@ -56,9 +56,7 @@ library
     else
       build-depends:
         unix
-          >= 2.8 && < 2.9
-            -- TODO: bump lower bound once there is a unix release
-            -- containing the necessary semaphore changes.
+          >= 2.8.1.0 && < 2.9
 
     default-language:
         Haskell2010