diff --git a/.env b/.env
index 5860902a3235..c5a9122db653 100644
--- a/.env
+++ b/.env
@@ -1,4 +1,4 @@
-FLINK_VERSION=1.19.0
+FLINK_VERSION=1.19.1
 CLOUDSDK_ACTIVE_CONFIG_NAME=ibis-gbq
 GOOGLE_CLOUD_PROJECT="$CLOUDSDK_ACTIVE_CONFIG_NAME"
 PGPASSWORD="postgres"
diff --git a/.github/workflows/ibis-backends.yml b/.github/workflows/ibis-backends.yml
index d85adf947d95..8300d1326e39 100644
--- a/.github/workflows/ibis-backends.yml
+++ b/.github/workflows/ibis-backends.yml
@@ -227,8 +227,8 @@ jobs:
             extras:
               - flink
             additional_deps:
-              - "'apache-flink < 1.20.0'"
-              - "'pandas < 2.2'"
+              - "'apache-flink@1.19.1'"
+              - "'pandas<2.2'"
               - setuptools
             services:
               - flink
@@ -249,8 +249,8 @@ jobs:
               extras:
                 - flink
               additional_deps:
-                - "'apache-flink < 1.20.0'"
-                - "'pandas < 2.2'"
+                - "'apache-flink@1.19.1'"
+                - "'pandas<2.2'"
                 - setuptools
               services:
                 - flink
@@ -400,8 +400,8 @@ jobs:
               extras:
                 - flink
               additional_deps:
-                - "'apache-flink < 1.20.0'"
-                - "'pandas < 2.2'"
+                - "'apache-flink@1.19.1'"
+                - "'pandas<2.2'"
                 - setuptools
               services:
                 - flink
@@ -413,8 +413,8 @@ jobs:
               extras:
                 - flink
               additional_deps:
-                - "'apache-flink < 1.20.0'"
-                - "'pandas < 2.2'"
+                - "'apache-flink@1.19.1'"
+                - "'pandas<2.2'"
                 - setuptools
               services:
                 - flink
diff --git a/conda/environment-arm64-flink.yml b/conda/environment-arm64-flink.yml
index 746679da7bd0..0c76ae81a161 100644
--- a/conda/environment-arm64-flink.yml
+++ b/conda/environment-arm64-flink.yml
@@ -96,4 +96,4 @@ dependencies:
   - py4j =0.10.9.7
   - pip
   - pip:
-      - apache-flink >=1.19.1
+      - apache-flink =1.19.1
diff --git a/docker/flink/Dockerfile b/docker/flink/Dockerfile
index 6260bc8fa99d..515d1ef66145 100644
--- a/docker/flink/Dockerfile
+++ b/docker/flink/Dockerfile
@@ -1,4 +1,4 @@
-ARG FLINK_VERSION=1.20.0
+ARG FLINK_VERSION=1.19.1
 FROM flink:${FLINK_VERSION}
 
 # ibis-flink requires PyFlink dependency
diff --git a/ibis/backends/sql/dialects.py b/ibis/backends/sql/dialects.py
index a4920a4b5a96..499a76e75daa 100644
--- a/ibis/backends/sql/dialects.py
+++ b/ibis/backends/sql/dialects.py
@@ -5,6 +5,7 @@
 from copy import deepcopy
 
 import sqlglot.expressions as sge
+import sqlglot.generator as sgn
 from sqlglot import transforms
 from sqlglot.dialects import (
     TSQL,
@@ -219,6 +220,16 @@ class Generator(Hive.Generator):
             sge.Interval: _interval_with_precision,
         }
 
+        # Flink is like Hive except where it might actually be convenient
+        #
+        # UNNEST works like the SQL standard, and not like Hive, so we have to
+        # override sqlglot here and convince it that flink is not like Hive
+        # when it comes to unnesting
+        TRANSFORMS.pop(sge.Unnest, None)
+
+        def unnest_sql(self, expression: sge.Unnest) -> str:
+            return sgn.Generator.unnest_sql(self, expression)
+
         def struct_sql(self, expression: sge.Struct) -> str:
             from sqlglot.optimizer.annotate_types import annotate_types
 
diff --git a/poetry.lock b/poetry.lock
index 8e8ba15d5d2a..b933ea8cf712 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -6799,13 +6799,13 @@ sqlcipher = ["sqlcipher3_binary"]
 
 [[package]]
 name = "sqlglot"
-version = "25.8.1"
+version = "25.9.0"
 description = "An easily customizable SQL parser and transpiler"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "sqlglot-25.8.1-py3-none-any.whl", hash = "sha256:9e79b211ecc15b23440be3fc82f292615ee2c49d85571ca861cc0398120d7baf"},
-    {file = "sqlglot-25.8.1.tar.gz", hash = "sha256:afc4df057ab11be23278655ec8c31b21118077d0c68c001a9764767b72799a99"},
+    {file = "sqlglot-25.9.0-py3-none-any.whl", hash = "sha256:6299c246435f680edc0c1be9af1faa55176625f69b23c49229f3208960e04927"},
+    {file = "sqlglot-25.9.0.tar.gz", hash = "sha256:6bdc047414066d3730b95e655392d71b12894a22de15a145c984b53e5c5d91aa"},
 ]
 
 [package.extras]
@@ -7789,4 +7789,4 @@ visualization = ["graphviz"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "03717a8b1d7b3944ba9e69f6ce2d3b023f406674f7d1b5dca610d85754a4c6ba"
+content-hash = "e7d5e50095adedffcb009420bd275ad64d37ded89f5270fa0cf612f01f1df266"
diff --git a/pyproject.toml b/pyproject.toml
index 843b9bb8be31..6b0d70b2273f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ pyarrow-hotfix = { version = ">=0.4,<1", optional = true }
 python-dateutil = ">=2.8.2,<3"
 pytz = ">=2022.7"
 rich = ">=12.4.4,<14"
-sqlglot = ">=23.4,<25.9"
+sqlglot = ">=23.4,<25.10"
 toolz = ">=0.11,<1"
 typing-extensions = ">=4.3.0,<5"
 black = { version = ">=22.1.0,<25", optional = true }
diff --git a/requirements-dev.txt b/requirements-dev.txt
index e3ccaf290bd3..6b87afbd8366 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -256,7 +256,7 @@ sortedcontainers==2.4.0 ; python_version >= "3.10" and python_version < "4.0"
 soupsieve==2.5 ; python_version >= "3.10" and python_version < "3.13"
 sphobjinv==2.3.1.1 ; python_version >= "3.10" and python_version < "3.13"
 sqlalchemy==2.0.31 ; python_version >= "3.10" and python_version < "3.13"
-sqlglot==25.8.1 ; python_version >= "3.10" and python_version < "4.0"
+sqlglot==25.9.0 ; python_version >= "3.10" and python_version < "4.0"
 stack-data==0.6.3 ; python_version >= "3.10" and python_version < "4.0"
 statsmodels==0.14.2 ; python_version >= "3.10" and python_version < "3.13"
 tabulate==0.9.0 ; python_version >= "3.10" and python_version < "3.13"