diff --git a/.github/workflows/_compile_integration_test.yml b/.github/workflows/_compile_integration_test.yml
index 4d2d772c856..aed2bc50984 100644
--- a/.github/workflows/_compile_integration_test.yml
+++ b/.github/workflows/_compile_integration_test.yml
@@ -13,7 +13,7 @@ on:
         description: "Python version to use"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_integration_test.yml b/.github/workflows/_integration_test.yml
index 7f9ea8ddf57..798ea62b44e 100644
--- a/.github/workflows/_integration_test.yml
+++ b/.github/workflows/_integration_test.yml
@@ -12,7 +12,7 @@ on:
         description: "Python version to use"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_lint.yml b/.github/workflows/_lint.yml
index 057959d5fcc..a72bf685573 100644
--- a/.github/workflows/_lint.yml
+++ b/.github/workflows/_lint.yml
@@ -13,7 +13,7 @@ on:
         description: "Python version to use"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
   WORKDIR: ${{ inputs.working-directory == '' && '.' || inputs.working-directory }}
 
   # This env var allows us to get inline annotations when ruff has complaints.
diff --git a/.github/workflows/_release.yml b/.github/workflows/_release.yml
index bf0c1e0454f..f52cfc99dd4 100644
--- a/.github/workflows/_release.yml
+++ b/.github/workflows/_release.yml
@@ -21,7 +21,7 @@ on:
 
 env:
   PYTHON_VERSION: "3.11"
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_test.yml b/.github/workflows/_test.yml
index 0e03bbb16ae..97107ab501a 100644
--- a/.github/workflows/_test.yml
+++ b/.github/workflows/_test.yml
@@ -13,7 +13,7 @@ on:
         description: "Python version to use"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_test_doc_imports.yml b/.github/workflows/_test_doc_imports.yml
index 1b1db0d84c2..2d09ddf6d59 100644
--- a/.github/workflows/_test_doc_imports.yml
+++ b/.github/workflows/_test_doc_imports.yml
@@ -9,7 +9,7 @@ on:
         description: "Python version to use"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_test_pydantic.yml b/.github/workflows/_test_pydantic.yml
index ee48f46500b..752e34d22ed 100644
--- a/.github/workflows/_test_pydantic.yml
+++ b/.github/workflows/_test_pydantic.yml
@@ -18,7 +18,7 @@ on:
         description: "Pydantic version to test."
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/_test_release.yml b/.github/workflows/_test_release.yml
index c7ba3c0f40e..5d70d3974e2 100644
--- a/.github/workflows/_test_release.yml
+++ b/.github/workflows/_test_release.yml
@@ -14,7 +14,7 @@ on:
         description: "Release from a non-master branch (danger!)"
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
   PYTHON_VERSION: "3.10"
 
 jobs:
diff --git a/.github/workflows/api_doc_build.yml b/.github/workflows/api_doc_build.yml
index c59337cdfe7..28ad2d74236 100644
--- a/.github/workflows/api_doc_build.yml
+++ b/.github/workflows/api_doc_build.yml
@@ -5,7 +5,7 @@ on:
   schedule:
     - cron:  '0 13 * * *'
 env:
-  POETRY_VERSION: "1.8.1"
+  POETRY_VERSION: "1.8.4"
   PYTHON_VERSION: "3.11"
 
 jobs:
diff --git a/.github/workflows/check_diffs.yml b/.github/workflows/check_diffs.yml
index 5caa9c9348b..e672cfe14fc 100644
--- a/.github/workflows/check_diffs.yml
+++ b/.github/workflows/check_diffs.yml
@@ -17,7 +17,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/run_notebooks.yml b/.github/workflows/run_notebooks.yml
index 5d80c0917fe..4f4fc703b38 100644
--- a/.github/workflows/run_notebooks.yml
+++ b/.github/workflows/run_notebooks.yml
@@ -15,7 +15,7 @@ on:
     - cron: '0 13 * * *'
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build:
diff --git a/.github/workflows/scheduled_test.yml b/.github/workflows/scheduled_test.yml
index 6a4767988bf..377012843da 100644
--- a/.github/workflows/scheduled_test.yml
+++ b/.github/workflows/scheduled_test.yml
@@ -6,7 +6,7 @@ on:
     - cron:  '0 13 * * *'
 
 env:
-  POETRY_VERSION: "1.7.1"
+  POETRY_VERSION: "1.8.4"
 
 jobs:
   build: