diff --git a/WORKSPACE b/WORKSPACE
index 0763b83..07d1660 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -53,9 +53,9 @@ rules_nixpkgs_dependencies(toolchains = [
 
 http_archive(
     name = "rules_haskell",
-    sha256 = "34742848a8882d94a0437b3b1917dea6f58c82fe5762afe8d249d3a36e51935d",
-    strip_prefix = "rules_haskell-0.19",
-    url = "https://github.com/tweag/rules_haskell/releases/download/v0.19/rules_haskell-0.19.tar.gz",
+    sha256 = "4cae22bc84f327bf3cb7605021c3663160ff6bc8a0b7b6266062366bcbd19e79",
+    strip_prefix = "rules_haskell-1.0",
+    url = "https://github.com/tweag/rules_haskell/releases/download/v1.0/rules_haskell-1.0.tar.gz",
 )
 
 load("@rules_haskell//haskell:repositories.bzl", "rules_haskell_dependencies")
diff --git a/example/WORKSPACE b/example/WORKSPACE
index 3ca5d4b..33e7d46 100644
--- a/example/WORKSPACE
+++ b/example/WORKSPACE
@@ -41,9 +41,9 @@ rules_nixpkgs_dependencies()
 
 http_archive(
     name = "rules_haskell",
-    sha256 = "34742848a8882d94a0437b3b1917dea6f58c82fe5762afe8d249d3a36e51935d",
-    strip_prefix = "rules_haskell-0.19",
-    url = "https://github.com/tweag/rules_haskell/releases/download/v0.19/rules_haskell-0.19.tar.gz",
+    sha256 = "4cae22bc84f327bf3cb7605021c3663160ff6bc8a0b7b6266062366bcbd19e79",
+    strip_prefix = "rules_haskell-1.0",
+    url = "https://github.com/tweag/rules_haskell/releases/download/v1.0/rules_haskell-1.0.tar.gz",
 )
 
 load("@rules_haskell//haskell:repositories.bzl", "rules_haskell_dependencies")
diff --git a/tests/alternative-deps/WORKSPACE b/tests/alternative-deps/WORKSPACE
index 804408c..04aff64 100644
--- a/tests/alternative-deps/WORKSPACE
+++ b/tests/alternative-deps/WORKSPACE
@@ -41,9 +41,9 @@ rules_nixpkgs_dependencies()
 
 http_archive(
     name = "rules_haskell",
-    sha256 = "34742848a8882d94a0437b3b1917dea6f58c82fe5762afe8d249d3a36e51935d",
-    strip_prefix = "rules_haskell-0.19",
-    url = "https://github.com/tweag/rules_haskell/releases/download/v0.19/rules_haskell-0.19.tar.gz",
+    sha256 = "4cae22bc84f327bf3cb7605021c3663160ff6bc8a0b7b6266062366bcbd19e79",
+    strip_prefix = "rules_haskell-1.0",
+    url = "https://github.com/tweag/rules_haskell/releases/download/v1.0/rules_haskell-1.0.tar.gz",
 )
 
 load("@rules_haskell//haskell:repositories.bzl", "rules_haskell_dependencies")