diff --git a/hpack.yaml b/hpack.yaml
index cc8fef7..ef4c290 100644
--- a/hpack.yaml
+++ b/hpack.yaml
@@ -80,9 +80,9 @@ library:
     - Data.Unicode.Properties.Decompositions
     - Data.Unicode.Properties.DecompositionsK
   dependencies:
-    - bitarray
-    - bytestring
-    - text
+    - bitarray   >= 0.0.1 && < 0.1
+    - bytestring >= 0.9   && < 0.11
+    - text       >= 0.1   && < 1.3
 
 # developer mode only
 # Simple program to generate perf stats
@@ -105,18 +105,18 @@ tests:
     main:        NormalizationTest.hs
     other-modules: []
     dependencies:
-      - getopt-generics
-      - split
-      - text
+      - getopt-generics    >= 0.11  && < 0.14
+      - split              >= 0.1   && < 0.3
+      - text               >= 0.1   && < 1.3
       - unicode-transforms
   quickcheck:
     source-dirs: test
     main:        Properties.hs
     other-modules: QuickCheckUtils
     dependencies:
-      - deepseq >= 1.1.0.0
-      - QuickCheck
-      - text
+      - deepseq     >= 1.1 && < 1.5
+      - QuickCheck  >= 2.1 && < 2.10
+      - text        >= 0.1 && < 1.3
       - unicode-transforms
     when:
       - condition: flag(has-icu)
@@ -128,9 +128,9 @@ tests:
     main:        Extra.hs
     other-modules: QuickCheckUtils
     dependencies:
-      - deepseq >= 1.1.0.0
-      - QuickCheck
-      - text
+      - deepseq     >= 1.1 && < 1.5
+      - QuickCheck  >= 2.1 && < 2.10
+      - text        >= 0.1 && < 1.3
       - unicode-transforms
 
 benchmarks:
@@ -139,18 +139,17 @@ benchmarks:
       - condition: flag(has-icu)
         cpp-options: -DBENCH_ICU
         dependencies:
-          - text-icu >= 0.6.2.1
+          - text-icu >= 0.6.2.1 && < 0.8
 
     source-dirs: benchmark
     main:        Benchmark.hs
 
     dependencies:
-      - bitarray
-      - criterion >= 1.1.1.0
-      - deepseq >= 1.1.0.0
-      - filepath
-      - optparse-applicative
-      - path
-      - path-io
-      - text
+      - criterion            >= 1.1.1 && < 1.2
+      - deepseq              >= 1.1.0 && < 1.5
+      - filepath             >= 1.0   && < 2
+      - optparse-applicative >= 0.0.1 && < 0.14
+      - path                 >= 0.0.0 && < 0.6
+      - path-io              >= 0.1.0 && < 1.3
+      - text                 >= 0.1   && < 1.3
       - unicode-transforms
diff --git a/unicode-transforms.cabal b/unicode-transforms.cabal
index ff928bf..43e8c7a 100644
--- a/unicode-transforms.cabal
+++ b/unicode-transforms.cabal
@@ -81,9 +81,9 @@ library
       Data.Unicode.Properties.DecompositionsK
   build-depends:
       base >= 4.7 && < 5
-    , bitarray
-    , bytestring
-    , text
+    , bitarray   >= 0.0.1 && < 0.1
+    , bytestring >= 0.9   && < 0.11
+    , text       >= 0.1   && < 1.3
   if flag(dev)
     ghc-options: -O0
   else
@@ -99,9 +99,9 @@ test-suite extras
   ghc-options: -Wall -fwarn-identities -fwarn-incomplete-record-updates -fwarn-incomplete-uni-patterns -fwarn-tabs
   build-depends:
       base >= 4.7 && < 5
-    , deepseq >= 1.1.0.0
-    , QuickCheck
-    , text
+    , deepseq     >= 1.1 && < 1.5
+    , QuickCheck  >= 2.1 && < 2.10
+    , text        >= 0.1 && < 1.3
     , unicode-transforms
   if flag(dev)
     ghc-options: -O0
@@ -121,9 +121,9 @@ test-suite quickcheck
   ghc-options: -Wall -fwarn-identities -fwarn-incomplete-record-updates -fwarn-incomplete-uni-patterns -fwarn-tabs
   build-depends:
       base >= 4.7 && < 5
-    , deepseq >= 1.1.0.0
-    , QuickCheck
-    , text
+    , deepseq     >= 1.1 && < 1.5
+    , QuickCheck  >= 2.1 && < 2.10
+    , text        >= 0.1 && < 1.3
     , unicode-transforms
   if flag(dev)
     ghc-options: -O0
@@ -147,9 +147,9 @@ test-suite ucd
   ghc-options: -Wall -fwarn-identities -fwarn-incomplete-record-updates -fwarn-incomplete-uni-patterns -fwarn-tabs
   build-depends:
       base >= 4.7 && < 5
-    , getopt-generics
-    , split
-    , text
+    , getopt-generics    >= 0.11  && < 0.14
+    , split              >= 0.1   && < 0.3
+    , text               >= 0.1   && < 1.3
     , unicode-transforms
   if flag(dev)
     ghc-options: -O0
@@ -167,14 +167,13 @@ benchmark bench
   ghc-options: -Wall -fwarn-identities -fwarn-incomplete-record-updates -fwarn-incomplete-uni-patterns -fwarn-tabs
   build-depends:
       base >= 4.7 && < 5
-    , bitarray
-    , criterion >= 1.1.1.0
-    , deepseq >= 1.1.0.0
-    , filepath
-    , optparse-applicative
-    , path
-    , path-io
-    , text
+    , criterion            >= 1.1.1 && < 1.2
+    , deepseq              >= 1.1.0 && < 1.5
+    , filepath             >= 1.0   && < 2
+    , optparse-applicative >= 0.0.1 && < 0.14
+    , path                 >= 0.0.0 && < 0.6
+    , path-io              >= 0.1.0 && < 1.3
+    , text                 >= 0.1   && < 1.3
     , unicode-transforms
   if flag(dev)
     ghc-options: -O0
@@ -185,7 +184,7 @@ benchmark bench
   if flag(has-icu)
     cpp-options: -DBENCH_ICU
     build-depends:
-        text-icu >= 0.6.2.1
+        text-icu >= 0.6.2.1 && < 0.8
   other-modules:
       NormalizeFile
   default-language: Haskell2010