diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -2,6 +2,10 @@
 
 `mem-info` uses [PVP Versioning][1].
 
+## 0.4.1.1 -- 2025-06-04
+
+- Relax the upper bound on the optparse-applicative dependency
+
 ## 0.4.1.0 -- 2025-03-03
 
 - Add a --version flag that prints the version and exits
diff --git a/mem-info.cabal b/mem-info.cabal
--- a/mem-info.cabal
+++ b/mem-info.cabal
@@ -1,6 +1,6 @@
 cabal-version:      3.0
 name:               mem-info
-version:            0.4.1.0
+version:            0.4.1.1
 synopsis:           Print the core memory usage of programs
 description:
   A utility to accurately report the core memory usage of programs.
@@ -54,7 +54,7 @@
     , fmt                   >=0.6.3  && <0.8
     , hashable              >=1.4.2  && <1.6
     , mtl                   >=2.0 && <2.3 || > 2.3 && <2.5
-    , optparse-applicative  >=0.18.1 && <0.19
+    , optparse-applicative  >=0.18.1 && <0.20
     , text                  >=1.2.3  && <2.2
     , unix                  >=2.7.2  && <2.9
     , validity              >=0.12.0 && <0.14