diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 570732c1a09..14f48823f75 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -2043,11 +2043,11 @@ self: super: {
 
   # 2021-09-13: hls 1.3 needs a newer lsp than stackage-lts. (lsp >= 1.2.0.1)
   # (hls is nearly the only consumer, but consists of 18 packages, so we bump lsp globally.)
-  lsp = doDistribute self.lsp_1_4_0_0;
-  lsp-types = doDistribute self.lsp-types_1_4_0_0;
+  lsp = doDistribute self.lsp_1_2_0_1;
+  lsp-types = doDistribute self.lsp-types_1_3_0_1;
   # Not running the "example" test because it requires a binary from lsps test
   # suite which is not part of the output of lsp.
-  lsp-test = doDistribute (overrideCabal (old: { testTarget = "tests func-test"; }) self.lsp-test_0_14_0_2);
+  lsp-test = doDistribute (overrideCabal (old: { testTarget = "tests func-test"; }) self.lsp-test_0_14_0_1);
 
   # 2021-09-14: Tests are flaky.
   hls-splice-plugin = dontCheck super.hls-splice-plugin;
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 2374b713198..af9910d066c 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -165,6 +165,10 @@ extra-packages:
   - brick == 0.64.*                     # 2021-12-03: matterhorn depends on brick < 0.65
   - path == 0.9.0                       # 2021-12-03: path version building with stackage genvalidity and GHC 9.0.2
   - ormolu == 0.3.*                     # 2021-12-03: for HLS with GHC 9.0.2
+  # 2022-01-08 hls-plugin-api 1.2.0.2 needs lsp < 1.3, but newer than stackage
+  - lsp < 1.3
+  - lsp-types < 1.4
+  - lsp-test < 0.14.0.2
 
 package-maintainers:
   abbradar:
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 52b3d137065..b5a407031db 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -175684,6 +175684,39 @@ self: {
        license = lib.licenses.mit;
      }) {};
 
+  "lsp_1_2_0_1" = callPackage
+    ({ mkDerivation, aeson, async, attoparsec, base, bytestring
+     , containers, data-default, dependent-map, exceptions, filepath
+     , hashable, hslogger, hspec, hspec-discover, lens, lsp-types, mtl
+     , network-uri, QuickCheck, quickcheck-instances, random
+     , rope-utf16-splay, scientific, sorted-list, stm, text, time
+     , transformers, unliftio-core, unordered-containers, uuid
+     }:
+     mkDerivation {
+       pname = "lsp";
+       version = "1.2.0.1";
+       sha256 = "1bdgbxakdyhkrddj58f0al2wrx1mckp6hia7hk2wqjix20my8v49";
+       revision = "1";
+       editedCabalFile = "193y4b3l6agm83ng2c0ngvd0j9a71q237g9i5v57p502lhzfaag2";
+       isLibrary = true;
+       isExecutable = true;
+       libraryHaskellDepends = [
+         aeson async attoparsec base bytestring containers data-default
+         dependent-map exceptions hashable hslogger lens lsp-types mtl
+         network-uri random scientific sorted-list stm text time
+         transformers unliftio-core unordered-containers uuid
+       ];
+       testHaskellDepends = [
+         aeson base containers filepath hspec lens network-uri QuickCheck
+         quickcheck-instances rope-utf16-splay sorted-list text
+         unordered-containers
+       ];
+       testToolDepends = [ hspec-discover ];
+       description = "Haskell library for the Microsoft Language Server Protocol";
+       license = lib.licenses.mit;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "lsp_1_4_0_0" = callPackage
     ({ mkDerivation, aeson, async, attoparsec, base, bytestring
      , containers, data-default, exceptions, filepath, hashable
@@ -175742,6 +175775,34 @@ self: {
        license = lib.licenses.bsd3;
      }) {};
 
+  "lsp-test_0_14_0_1" = callPackage
+    ({ mkDerivation, aeson, aeson-pretty, ansi-terminal, async, base
+     , bytestring, conduit, conduit-parse, containers, data-default
+     , Diff, directory, extra, filepath, Glob, hspec, lens, lsp
+     , lsp-types, mtl, parser-combinators, process, some, text, time
+     , transformers, unix, unliftio, unordered-containers
+     }:
+     mkDerivation {
+       pname = "lsp-test";
+       version = "0.14.0.1";
+       sha256 = "0fr1812dnzv9hljb77khspaz666wqr6m1gj963v0z2j6xgvw2ipy";
+       libraryHaskellDepends = [
+         aeson aeson-pretty ansi-terminal async base bytestring conduit
+         conduit-parse containers data-default Diff directory filepath Glob
+         lens lsp-types mtl parser-combinators process some text time
+         transformers unix unordered-containers
+       ];
+       testHaskellDepends = [
+         aeson async base data-default directory filepath hspec lens lsp mtl
+         parser-combinators process text unliftio unordered-containers
+       ];
+       testToolDepends = [ lsp ];
+       benchmarkHaskellDepends = [ base extra lsp process ];
+       description = "Functional test framework for LSP servers";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "lsp-test_0_14_0_2" = callPackage
     ({ mkDerivation, aeson, aeson-pretty, ansi-terminal, async, base
      , bytestring, conduit, conduit-parse, containers, data-default
@@ -175793,6 +175854,30 @@ self: {
        license = lib.licenses.mit;
      }) {};
 
+  "lsp-types_1_3_0_1" = callPackage
+    ({ mkDerivation, aeson, base, binary, bytestring, containers
+     , data-default, deepseq, dependent-sum, dependent-sum-template
+     , Diff, directory, dlist, filepath, hashable, hslogger, lens, mtl
+     , network-uri, rope-utf16-splay, scientific, some, template-haskell
+     , temporary, text, unordered-containers
+     }:
+     mkDerivation {
+       pname = "lsp-types";
+       version = "1.3.0.1";
+       sha256 = "05zgd99y7xnxnydisq5x24n1af2isar172p247hb5q0mp12hdd3z";
+       revision = "1";
+       editedCabalFile = "031b69fxi8m4fcwwgqb7cf4k806ikkmjqnn3wv6bn3sny1hn5gg7";
+       libraryHaskellDepends = [
+         aeson base binary bytestring containers data-default deepseq
+         dependent-sum dependent-sum-template Diff directory dlist filepath
+         hashable hslogger lens mtl network-uri rope-utf16-splay scientific
+         some template-haskell temporary text unordered-containers
+       ];
+       description = "Haskell library for the Microsoft Language Server Protocol, data types";
+       license = lib.licenses.mit;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "lsp-types_1_4_0_0" = callPackage
     ({ mkDerivation, aeson, base, binary, bytestring, containers
      , data-default, deepseq, Diff, directory, dlist, filepath, hashable