diff --git a/flake.lock b/flake.lock
index a15208605..36a6ffe84 100644
--- a/flake.lock
+++ b/flake.lock
@@ -169,11 +169,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1726153070,
-        "narHash": "sha256-HO4zgY0ekfwO5bX0QH/3kJ/h4KvUDFZg8YpkNwIbg1U=",
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "bcef6817a8b2aa20a5a6dbb19b43e63c5bf8619a",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
         "type": "github"
       },
       "original": {
@@ -187,11 +187,11 @@
         "nixpkgs-lib": "nixpkgs-lib_2"
       },
       "locked": {
-        "lastModified": 1725234343,
-        "narHash": "sha256-+ebgonl3NbiKD2UD0x4BszCZQ6sTfL4xioaM49o5B3Y=",
+        "lastModified": 1727826117,
+        "narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "567b938d64d4b4112ee253b9274472dc3a346eb6",
+        "rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
         "type": "github"
       },
       "original": {
@@ -268,6 +268,8 @@
         "url": "https://gitlab.haskell.org/ghc/ghc-wasm-meta"
       },
       "original": {
+        "ref": "refs/heads/master",
+        "rev": "a04cc1a2206d2030326e1d49be9c6a94ee4283a3",
         "type": "git",
         "url": "https://gitlab.haskell.org/ghc/ghc-wasm-meta"
       }
@@ -334,11 +336,11 @@
     "hackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1726273909,
-        "narHash": "sha256-VLTYrY6VbuaD+Ya4qs2MVmYfOev9j6J8S7HCDf/bFF4=",
+        "lastModified": 1730507281,
+        "narHash": "sha256-h0oQpmjG4ncIRX4abldOj08ntLbQ+Z7UVvL6YPwZJ98=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "35f1e6fb135ffd1238d5a533c61ba434f5dd6984",
+        "rev": "f76db3491d6fe75fd4e4bd78d9fcdb93b3ac87e0",
         "type": "github"
       },
       "original": {
@@ -361,11 +363,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1725712951,
-        "narHash": "sha256-UzgYnLYO2ruJFWpAy6THKtlWMewQwy+N8c9Yoxfx+LI=",
+        "lastModified": 1730552175,
+        "narHash": "sha256-6Rxe+s1BqnDYHRsHzSoZPR3KmnkV7aCjBu+KOKKItdQ=",
         "owner": "hackworthltd",
         "repo": "hacknix",
-        "rev": "3bbdc7ac5da96213bd407d29f71d1edcad5c0a56",
+        "rev": "a4eb48ebfb3752deacbcbdc1f30dbc4ea264684a",
         "type": "github"
       },
       "original": {
@@ -414,11 +416,11 @@
         "stackage": "stackage"
       },
       "locked": {
-        "lastModified": 1726275037,
-        "narHash": "sha256-q0+NlcOGV1eQRN1FjLpt5li6iyPQPeky37hwP5JLqVU=",
+        "lastModified": 1730508658,
+        "narHash": "sha256-qV7xlM+ZqXkc3QfJRv8X8tDgQc6YmJz5w8gg1TeJZ60=",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "a93d40302777a9ce268b3bc57caae3f7fdae1ce1",
+        "rev": "cbccada6227a5ff34e8e03981e6834c50a4f79a0",
         "type": "github"
       },
       "original": {
@@ -583,16 +585,16 @@
     "hls-2.9": {
       "flake": false,
       "locked": {
-        "lastModified": 1718469202,
-        "narHash": "sha256-THXSz+iwB1yQQsr/PY151+2GvtoJnTIB2pIQ4OzfjD4=",
+        "lastModified": 1720003792,
+        "narHash": "sha256-qnDx8Pk0UxtoPr7BimEsAZh9g2WuTuMB/kGqnmdryKs=",
         "owner": "haskell",
         "repo": "haskell-language-server",
-        "rev": "40891bccb235ebacce020b598b083eab9dda80f1",
+        "rev": "0c1817cb2babef0765e4e72dd297c013e8e3d12b",
         "type": "github"
       },
       "original": {
         "owner": "haskell",
-        "ref": "2.9.0.0",
+        "ref": "2.9.0.1",
         "repo": "haskell-language-server",
         "type": "github"
       }
@@ -695,11 +697,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1725628909,
-        "narHash": "sha256-xI0OSqPHcs/c/utJsU0Zvcp1VhejMI9mgwr68uHHlPs=",
+        "lastModified": 1730448474,
+        "narHash": "sha256-qE/cYKBhzxHMtKtLK3hlSR3uzO1pWPGLrBuQK7r0CHc=",
         "owner": "LnL7",
         "repo": "nix-darwin",
-        "rev": "76559183801030451e200c90a1627c1d82bb4910",
+        "rev": "683d0c4cd1102dcccfa3f835565378c7f3cbe05e",
         "type": "github"
       },
       "original": {
@@ -710,11 +712,11 @@
     },
     "nixlib": {
       "locked": {
-        "lastModified": 1725152544,
-        "narHash": "sha256-Tm344cnFM9f2YZsgWtJduvhIrvLr3Bi8J4Xc+UZDKYE=",
+        "lastModified": 1729386149,
+        "narHash": "sha256-hUP9oxmnOmNnKcDOf5Y55HQ+NnoT0+bLWHLQWLLw9Ks=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "7f0b9e4fbd91826cb9ce6babbc11c87903191051",
+        "rev": "cce4521b6df014e79a7b7afc58c703ed683c916e",
         "type": "github"
       },
       "original": {
@@ -732,11 +734,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1725497951,
-        "narHash": "sha256-fayKyVs/9FQdYH+3SCOkQM1GCsEPPVE+lSiVGlYQ7i0=",
+        "lastModified": 1729472750,
+        "narHash": "sha256-s93LPHi5BN7I2xSGNAFWiYb8WRsPvT1LE9ZjZBrpFlg=",
         "owner": "nix-community",
         "repo": "nixos-generators",
-        "rev": "15a07ebf4a041bf232026263f1f96f2af390f3bc",
+        "rev": "7c60ba4bc8d6aa2ba3e5b0f6ceb9fc07bc261565",
         "type": "github"
       },
       "original": {
@@ -875,11 +877,11 @@
     },
     "nixpkgs-2405": {
       "locked": {
-        "lastModified": 1720122915,
-        "narHash": "sha256-Nby8WWxj0elBu1xuRaUcRjPi/rU3xVbkAt2kj4QwX2U=",
+        "lastModified": 1726447378,
+        "narHash": "sha256-2yV8nmYE1p9lfmLHhOCbYwQC/W8WYfGQABoGzJOb1JQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "835cf2d3f37989c5db6585a28de967a667a75fb1",
+        "rev": "086b448a5d54fd117f4dc2dee55c9f0ff461bdc1",
         "type": "github"
       },
       "original": {
@@ -891,26 +893,26 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1725233747,
-        "narHash": "sha256-Ss8QWLXdr2JCBPcYChJhz4xJm+h/xjl4G0c0XlP6a74=",
+        "lastModified": 1730504152,
+        "narHash": "sha256-lXvH/vOfb4aGYyvFmZK/HlsNsr/0CVWlwYvo2rxJk3s=",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       }
     },
     "nixpkgs-lib_2": {
       "locked": {
-        "lastModified": 1725233747,
-        "narHash": "sha256-Ss8QWLXdr2JCBPcYChJhz4xJm+h/xjl4G0c0XlP6a74=",
+        "lastModified": 1727825735,
+        "narHash": "sha256-0xHYkMkeLVQAMa7gvkddbPqpxph+hDzdu1XdGPJR+Os=",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
       }
     },
     "nixpkgs-regression": {
@@ -963,11 +965,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1720181791,
-        "narHash": "sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8=",
+        "lastModified": 1726583932,
+        "narHash": "sha256-zACxiQx8knB3F8+Ze+1BpiYrI+CbhxyWpcSID9kVhkQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb",
+        "rev": "658e7223191d2598641d50ee4e898126768fe847",
         "type": "github"
       },
       "original": {
@@ -1035,11 +1037,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1725513492,
-        "narHash": "sha256-tyMUA6NgJSvvQuzB7A1Sf8+0XCHyfSPRx/b00o6K0uo=",
+        "lastModified": 1730302582,
+        "narHash": "sha256-W1MIJpADXQCgosJZT8qBYLRuZls2KSiKdpnTVdKBuvU=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "7570de7b9b504cfe92025dd1be797bf546f66528",
+        "rev": "af8a16fe5c264f5e9e18bcee2859b40a656876cf",
         "type": "github"
       },
       "original": {
@@ -1091,11 +1093,11 @@
     "stackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1726100060,
-        "narHash": "sha256-nvxogFYvwoUuqTHKyn1vcOuQFKEGGlXiTNzTDHeOImk=",
+        "lastModified": 1730506256,
+        "narHash": "sha256-VGkhLm8MHOdIfkib+uROPGBDumcUHNhX5w4o+0E0UrA=",
         "owner": "input-output-hk",
         "repo": "stackage.nix",
-        "rev": "732fcc1460200a3050697a056a0fe9d460d0dbec",
+        "rev": "7f423eff7136607939b27a7d6a437c60ace22659",
         "type": "github"
       },
       "original": {
@@ -1142,11 +1144,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1725271838,
-        "narHash": "sha256-VcqxWT0O/gMaeWTTjf1r4MOyG49NaNxW4GHTO3xuThE=",
+        "lastModified": 1730321837,
+        "narHash": "sha256-vK+a09qq19QNu2MlLcvN4qcRctJbqWkX7ahgPZ/+maI=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "9fb342d14b69aefdf46187f6bb80a4a0d97007cd",
+        "rev": "746901bb8dba96d154b66492a29f5db0693dbfcc",
         "type": "github"
       },
       "original": {
@@ -1162,11 +1164,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1725271838,
-        "narHash": "sha256-VcqxWT0O/gMaeWTTjf1r4MOyG49NaNxW4GHTO3xuThE=",
+        "lastModified": 1730321837,
+        "narHash": "sha256-vK+a09qq19QNu2MlLcvN4qcRctJbqWkX7ahgPZ/+maI=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "9fb342d14b69aefdf46187f6bb80a4a0d97007cd",
+        "rev": "746901bb8dba96d154b66492a29f5db0693dbfcc",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 8fc2c51cf..8a7640315 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,7 +25,7 @@
     pre-commit-hooks-nix.inputs.nixpkgs.follows = "nixpkgs";
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
 
-    ghc-wasm.url = "git+https://gitlab.haskell.org/ghc/ghc-wasm-meta";
+    ghc-wasm.url = "git+https://gitlab.haskell.org/ghc/ghc-wasm-meta?ref=refs/heads/master&rev=a04cc1a2206d2030326e1d49be9c6a94ee4283a3";
   };
 
   outputs = inputs@ { flake-parts, ... }:
@@ -431,6 +431,17 @@
                     doHoogle = true;
                   }
                   {
+                    # Some packages are not visible to haskell.nix's planner, and need
+                    # to be added manually.
+                    #
+                    # Ref:
+                    # https://github.com/input-output-hk/haskell.nix/commit/61fbe408c01b6d61d010e6fb8e78bd19b5b025cc
+                    package-keys = [
+                      "bytestring-builder"
+                      "diagrams"
+                      "fail"
+                    ];
+
                     # These packages don't generate HIE files. See:
                     # https://github.com/input-output-hk/haskell.nix/issues/1242
                     packages.mtl-compat.writeHieFiles = false;
@@ -492,6 +503,12 @@
 
                     #TODO Explicitly requiring tasty-discover shouldn't be necessary - see the commented-out `build-tool-depends` in primer.cabal.
                     tasty-discover = "latest";
+
+                    # Required until http-client-tls mess is resolved.
+                    #
+                    # Ref:
+                    # https://github.com/input-output-hk/haskell.nix/issues/2277
+                    hoogle.index-state = "2024-10-01T00:00:00Z";
                   };
 
                   buildInputs = (with final; [
diff --git a/primer-service/primer-service.cabal b/primer-service/primer-service.cabal
index dfc1c939c..2efe2bac4 100644
--- a/primer-service/primer-service.cabal
+++ b/primer-service/primer-service.cabal
@@ -135,7 +135,7 @@ executable primer-client
     , bytestring            >=0.10.8.2 && <0.13
     , directory
     , exceptions
-    , http-client-tls       ^>=0.3.6.1
+    , http-client-tls       ==0.3.6.3
     , optparse-applicative
     , primer
     , primer-service