diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,5 +1,10 @@
 # Revision history for rounded
 
+## 1.1.1 -- 2023-10-02
+
+* Add `gmp` to `pkgconfig-depends`.  Fixes: <https://github.com/ekmett/rounded/issues/35>.
+* Bump dependency versions.  Fixes: <https://github.com/ekmett/rounded/issues/34>.
+
 ## 1.1 -- 2020-05-19
 
 * Fixed `simplify` with `Nat` precisions by adding kind signatures.
diff --git a/rounded.cabal b/rounded.cabal
--- a/rounded.cabal
+++ b/rounded.cabal
@@ -1,5 +1,5 @@
 name:               rounded
-version:            1.1
+version:            1.1.1
 synopsis:           Correctly-rounded arbitrary-precision floating-point arithmetic
 homepage:           https://github.com/ekmett/rounded
 bug-reports:        https://github.com/ekmett/rounded/issues
@@ -12,7 +12,7 @@
 category:           Numeric, Math
 build-type:         Simple
 cabal-version:      1.22
-tested-with:        GHC == 7.10.3, GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.1, GHC == 8.8.1
+tested-with:        GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.7, GHC == 9.6.3
 description:
     This package provides numeric instances for MPFR that use
     \"Implicit Configurations\" from
@@ -21,7 +21,7 @@
     use reflection, explicit instances are provided for common precisions
     and for the built-in rounding modes.
     .
-    This package should work correctly with GHC 7.10.1 or later.
+    This package should work correctly with GHC 8.4.4 or later.
     .
     >>> import Numeric.Rounded
     >>> :set -XDataKinds
@@ -30,7 +30,8 @@
     .
     rounded version 1.x is for MPFR version 4.0 and above.
 
-extra-source-files: README.markdown CHANGELOG.markdown test.hs test.txt
+extra-doc-files: README.markdown CHANGELOG.markdown
+extra-source-files: test.hs test.txt
 
 source-repository head
   type: git
@@ -39,7 +40,7 @@
 source-repository this
   type: git
   location: git://github.com/ekmett/rounded.git
-  tag: rounded-1.1
+  tag: rounded-1.1.1
 
 library
   exposed-modules:
@@ -57,8 +58,8 @@
     Numeric.Rounded.Precision
 
   build-depends:
-    base             >= 4.8     && < 4.15,
-    ghc-prim         >= 0.4     && < 0.7,
+    base             >= 4.11    && < 4.20,
+    ghc-prim         >= 0.4     && < 0.12,
     reflection       >= 2.1.2   && < 2.2,
     hgmp             >= 0.1.1   && < 0.2,
     long-double      >= 0.1     && < 0.2
@@ -67,7 +68,7 @@
   build-tools:     hsc2hs
 
   extra-libraries: mpfr gmp
-  pkgconfig-depends: mpfr >= 4.0.0
+  pkgconfig-depends: mpfr >= 4.0.0, gmp
 
   hs-source-dirs:  src
   c-sources:       cbits/wrappers.c