diff --git a/cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected b/cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected
index 57d240fd7958..6cc662aee3b2 100644
--- a/cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected
+++ b/cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected
@@ -7,6 +7,7 @@ ql/cpp/ql/src/Diagnostics/ExtractedFiles.ql
 ql/cpp/ql/src/Diagnostics/ExtractionWarnings.ql
 ql/cpp/ql/src/Diagnostics/FailedExtractorInvocations.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/BadAdditionOverflowCheck.ql
+ql/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/SignedOverflowCheck.ql
 ql/cpp/ql/src/Likely Bugs/Conversion/CastArrayPointerArithmetic.ql
 ql/cpp/ql/src/Likely Bugs/Format/SnprintfOverflow.ql
diff --git a/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql b/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql
index 6747d177c80e..b05bd637dc2d 100644
--- a/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql	
+++ b/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql	
@@ -5,7 +5,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 8.1
- * @precision medium
+ * @precision high
  * @id cpp/integer-multiplication-cast-to-long
  * @tags reliability
  *       security
diff --git a/cpp/ql/src/change-notes/2026-04-02-integer-multiplication-cast-to-long.md b/cpp/ql/src/change-notes/2026-04-02-integer-multiplication-cast-to-long.md
new file mode 100644
index 000000000000..cd6796b408f0
--- /dev/null
+++ b/cpp/ql/src/change-notes/2026-04-02-integer-multiplication-cast-to-long.md
@@ -0,0 +1,4 @@
+---
+category: minorAnalysis
+---
+* The "Multiplication result converted to larger type" (`cpp/integer-multiplication-cast-to-long`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.