diff --git a/lectures/pandas/reshape.md b/lectures/pandas/reshape.md
index 10dc35c4..fd68c04b 100644
--- a/lectures/pandas/reshape.md
+++ b/lectures/pandas/reshape.md
@@ -342,8 +342,10 @@ It can be used to move all of the "values" stored in your DataFrame to a
 single column with all other columns being used to contain identifying
 information.
 
-**Warning**: When you use `melt`, any index that you currently have
+```{warning}
+When you use `melt`, any index that you currently have
 will be deleted.
+```
 
 We saw used `melt` above when we constructed `bball_long`:
 
@@ -591,8 +593,9 @@ df_melted
 
 ### Exercise 1
 
-(*Warning*: This one is challenging):
-
+```{warning}
+This one is challenging
+```
 Recall the `bball_wide` DataFrame from above (repeated below to jog
 your memory).
 
diff --git a/lectures/python_fundamentals/basics.md b/lectures/python_fundamentals/basics.md
index 5db54a83..02a561a0 100644
--- a/lectures/python_fundamentals/basics.md
+++ b/lectures/python_fundamentals/basics.md
@@ -395,8 +395,10 @@ print("a ^ b is", a^b)
 
 You likely could have guessed all except the last two.
 
-**Warning**: Python uses `**`, not `^`, for exponentiation (raising a number
+```{warning}
+Python uses `**`, not `^`, for exponentiation (raising a number
 to a power)!
+```
 
 Notice also that above `+`, `-` and `**` all returned an integer
 type, but `/` converted the result to a float.