diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index 5c1a6d9eb..a0bfd5377 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -32,7 +32,7 @@ extra-source-files:
 #data-files:
 
 dependencies:
-- base >=4.10.1.0 && <4.16
+- base >=4.11 && <4.16
 - base-compat-batteries >=0.10.1 && <0.12
 - aeson >=1
 - aeson-pretty
diff --git a/hledger-ui/package.yaml b/hledger-ui/package.yaml
index fbf2ca163..afa64de65 100644
--- a/hledger-ui/package.yaml
+++ b/hledger-ui/package.yaml
@@ -45,7 +45,7 @@ dependencies:
 - hledger >=1.22.99 && <1.23
 - ansi-terminal >=0.9
 - async
-- base >=4.10.1.0 && <4.16
+- base >=4.11 && <4.16
 - base-compat-batteries >=0.10.1 && <0.12
 - cmdargs >=0.8
 - containers >=0.5.9
diff --git a/hledger-web/package.yaml b/hledger-web/package.yaml
index 33aea04fe..6ee1a52cd 100644
--- a/hledger-web/package.yaml
+++ b/hledger-web/package.yaml
@@ -102,7 +102,7 @@ library:
   - hledger-lib >=1.22.99 && <1.23
   - hledger >=1.22.99 && <1.23
   - aeson >=1
-  - base >=4.10.1.0 && <4.16
+  - base >=4.11 && <4.16
   - blaze-html
   - blaze-markup
   - bytestring
diff --git a/hledger/package.yaml b/hledger/package.yaml
index 44b100dfe..9b8c8d3c5 100644
--- a/hledger/package.yaml
+++ b/hledger/package.yaml
@@ -99,7 +99,7 @@ dependencies:
 - hledger-lib >=1.22.99 && <1.23
 - aeson >=1
 - ansi-terminal >=0.9
-- base >=4.10.1.0 && <4.16
+- base >=4.11 && <4.16
 - base-compat-batteries >=0.10.1 && <0.12
 - bytestring
 - cmdargs >=0.10